721185120

素因数分解:

$2^5\times 3^9\times 5^1\times {\mathrm{229}}^1$

素因数の和:271

約数の個数: 240

約数和(自身を含む): 2566816560

約数和(自身を除く): 1845631440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 229, 240, 243, 270, 288, 324, 360, 405, 432, 458, 480, 486, 540, 648, 687, 720, 729, 810, 864, 916, 972, 1080, 1145, 1215, 1296, 1374, 1440, 1458, 1620, 1832, 1944, 2061, 2160, 2187, 2290, 2430, 2592, 2748, 2916, 3240, 3435, 3645, 3664, 3888, 4122, 4320, 4374, 4580, 4860, 5496, 5832, 6183, 6480, 6561, 6870, 7290, 7328, 7776, 8244, 8748, 9160, 9720, 10305, 10935, 10992, 11664, 12366, 12960, 13122, 13740, 14580, 16488, 17496, 18320, 18549, 19440, 19683, 20610, 21870, 21984, 23328, 24732, 26244, 27480, 29160, 30915, 32805, 32976, 34992, 36640, 37098, 38880, 39366, 41220, 43740, 49464, 52488, 54960, 55647, 58320, 61830, 65610, 65952, 69984, 74196, 78732, 82440, 87480, 92745, 98415, 98928, 104976, 109920, 111294, 116640, 123660, 131220, 148392, 157464, 164880, 166941, 174960, 185490, 196830, 197856, 209952, 222588, 247320, 262440, 278235, 296784, 314928, 329760, 333882, 349920, 370980, 393660, 445176, 494640, 500823, 524880, 556470, 593568, 629856, 667764, 741960, 787320, 834705, 890352, 989280, 1001646, 1049760, 1112940, 1335528, 1483920, 1502469, 1574640, 1669410, 1780704, 2003292, 2225880, 2504115, 2671056, 2967840, 3004938, 3149280, 3338820, 4006584, 4451760, 4507407, 5008230, 5342112, 6009876, 6677640, 7512345, 8013168, 8903520, 9014814, 10016460, 12019752, 13355280, 15024690, 16026336, 18029628, 20032920, 22537035, 24039504, 26710560, 30049380, 36059256, 40065840, 45074070, 48079008, 60098760, 72118512, 80131680, 90148140, 120197520, 144237024, 180296280, 240395040, 360592560, 721185120]

約数ペア:

[(1, 721185120), (2, 360592560), (3, 240395040), (4, 180296280), (5, 144237024), (6, 120197520), (8, 90148140), (9, 80131680), (10, 72118512), (12, 60098760), (15, 48079008), (16, 45074070), (18, 40065840), (20, 36059256), (24, 30049380), (27, 26710560), (30, 24039504), (32, 22537035), (36, 20032920), (40, 18029628), (45, 16026336), (48, 15024690), (54, 13355280), (60, 12019752), (72, 10016460), (80, 9014814), (81, 8903520), (90, 8013168), (96, 7512345), (108, 6677640), (120, 6009876), (135, 5342112), (144, 5008230), (160, 4507407), (162, 4451760), (180, 4006584), (216, 3338820), (229, 3149280), (240, 3004938), (243, 2967840), (270, 2671056), (288, 2504115), (324, 2225880), (360, 2003292), (405, 1780704), (432, 1669410), (458, 1574640), (480, 1502469), (486, 1483920), (540, 1335528), (648, 1112940), (687, 1049760), (720, 1001646), (729, 989280), (810, 890352), (864, 834705), (916, 787320), (972, 741960), (1080, 667764), (1145, 629856), (1215, 593568), (1296, 556470), (1374, 524880), (1440, 500823), (1458, 494640), (1620, 445176), (1832, 393660), (1944, 370980), (2061, 349920), (2160, 333882), (2187, 329760), (2290, 314928), (2430, 296784), (2592, 278235), (2748, 262440), (2916, 247320), (3240, 222588), (3435, 209952), (3645, 197856), (3664, 196830), (3888, 185490), (4122, 174960), (4320, 166941), (4374, 164880), (4580, 157464), (4860, 148392), (5496, 131220), (5832, 123660), (6183, 116640), (6480, 111294), (6561, 109920), (6870, 104976), (7290, 98928), (7328, 98415), (7776, 92745), (8244, 87480), (8748, 82440), (9160, 78732), (9720, 74196), (10305, 69984), (10935, 65952), (10992, 65610), (11664, 61830), (12366, 58320), (12960, 55647), (13122, 54960), (13740, 52488), (14580, 49464), (16488, 43740), (17496, 41220), (18320, 39366), (18549, 38880), (19440, 37098), (19683, 36640), (20610, 34992), (21870, 32976), (21984, 32805), (23328, 30915), (24732, 29160), (26244, 27480)]