721002120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1\times {\mathrm{683}}^1$

素因数の和:1179

約数の個数: 128

約数和(自身を含む): 2285107200

約数和(自身を除く): 1564105080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 463, 570, 683, 760, 926, 1140, 1366, 1389, 1852, 2049, 2280, 2315, 2732, 2778, 3415, 3704, 4098, 4630, 5464, 5556, 6830, 6945, 8196, 8797, 9260, 10245, 11112, 12977, 13660, 13890, 16392, 17594, 18520, 20490, 25954, 26391, 27320, 27780, 35188, 38931, 40980, 43985, 51908, 52782, 55560, 64885, 70376, 77862, 81960, 87970, 103816, 105564, 129770, 131955, 155724, 175940, 194655, 211128, 259540, 263910, 311448, 316229, 351880, 389310, 519080, 527820, 632458, 778620, 948687, 1055640, 1264916, 1557240, 1581145, 1897374, 2529832, 3162290, 3794748, 4743435, 6008351, 6324580, 7589496, 9486870, 12016702, 12649160, 18025053, 18973740, 24033404, 30041755, 36050106, 37947480, 48066808, 60083510, 72100212, 90125265, 120167020, 144200424, 180250530, 240334040, 360501060, 721002120]

約数ペア:

[(1, 721002120), (2, 360501060), (3, 240334040), (4, 180250530), (5, 144200424), (6, 120167020), (8, 90125265), (10, 72100212), (12, 60083510), (15, 48066808), (19, 37947480), (20, 36050106), (24, 30041755), (30, 24033404), (38, 18973740), (40, 18025053), (57, 12649160), (60, 12016702), (76, 9486870), (95, 7589496), (114, 6324580), (120, 6008351), (152, 4743435), (190, 3794748), (228, 3162290), (285, 2529832), (380, 1897374), (456, 1581145), (463, 1557240), (570, 1264916), (683, 1055640), (760, 948687), (926, 778620), (1140, 632458), (1366, 527820), (1389, 519080), (1852, 389310), (2049, 351880), (2280, 316229), (2315, 311448), (2732, 263910), (2778, 259540), (3415, 211128), (3704, 194655), (4098, 175940), (4630, 155724), (5464, 131955), (5556, 129770), (6830, 105564), (6945, 103816), (8196, 87970), (8797, 81960), (9260, 77862), (10245, 70376), (11112, 64885), (12977, 55560), (13660, 52782), (13890, 51908), (16392, 43985), (17594, 40980), (18520, 38931), (20490, 35188), (25954, 27780), (26391, 27320)]