291021780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:291

約数の個数: 192

約数和(自身を含む): 967680000

約数和(自身を除く): 676658220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 79, 84, 98, 105, 140, 147, 158, 179, 196, 210, 237, 245, 294, 316, 343, 358, 395, 420, 474, 490, 537, 553, 588, 686, 716, 735, 790, 895, 948, 980, 1029, 1074, 1106, 1185, 1253, 1372, 1470, 1580, 1659, 1715, 1790, 2058, 2148, 2212, 2370, 2506, 2685, 2765, 2940, 3318, 3430, 3580, 3759, 3871, 4116, 4740, 5012, 5145, 5370, 5530, 6265, 6636, 6860, 7518, 7742, 8295, 8771, 10290, 10740, 11060, 11613, 12530, 14141, 15036, 15484, 16590, 17542, 18795, 19355, 20580, 23226, 25060, 26313, 27097, 28282, 33180, 35084, 37590, 38710, 42423, 43855, 46452, 52626, 54194, 56564, 58065, 61397, 70705, 75180, 77420, 81291, 84846, 87710, 98987, 105252, 108388, 116130, 122794, 131565, 135485, 141410, 162582, 169692, 175420, 184191, 197974, 212115, 232260, 245588, 263130, 270970, 282820, 296961, 306985, 325164, 368382, 395948, 406455, 424230, 494935, 526260, 541940, 593922, 613970, 692909, 736764, 812910, 848460, 920955, 989870, 1187844, 1227940, 1385818, 1484805, 1625820, 1841910, 1979740, 2078727, 2771636, 2969610, 3464545, 3683820, 4157454, 4850363, 5939220, 6929090, 8314908, 9700726, 10393635, 13858180, 14551089, 19401452, 20787270, 24251815, 29102178, 41574540, 48503630, 58204356, 72755445, 97007260, 145510890, 291021780]

約数ペア:

[(1, 291021780), (2, 145510890), (3, 97007260), (4, 72755445), (5, 58204356), (6, 48503630), (7, 41574540), (10, 29102178), (12, 24251815), (14, 20787270), (15, 19401452), (20, 14551089), (21, 13858180), (28, 10393635), (30, 9700726), (35, 8314908), (42, 6929090), (49, 5939220), (60, 4850363), (70, 4157454), (79, 3683820), (84, 3464545), (98, 2969610), (105, 2771636), (140, 2078727), (147, 1979740), (158, 1841910), (179, 1625820), (196, 1484805), (210, 1385818), (237, 1227940), (245, 1187844), (294, 989870), (316, 920955), (343, 848460), (358, 812910), (395, 736764), (420, 692909), (474, 613970), (490, 593922), (537, 541940), (553, 526260), (588, 494935), (686, 424230), (716, 406455), (735, 395948), (790, 368382), (895, 325164), (948, 306985), (980, 296961), (1029, 282820), (1074, 270970), (1106, 263130), (1185, 245588), (1253, 232260), (1372, 212115), (1470, 197974), (1580, 184191), (1659, 175420), (1715, 169692), (1790, 162582), (2058, 141410), (2148, 135485), (2212, 131565), (2370, 122794), (2506, 116130), (2685, 108388), (2765, 105252), (2940, 98987), (3318, 87710), (3430, 84846), (3580, 81291), (3759, 77420), (3871, 75180), (4116, 70705), (4740, 61397), (5012, 58065), (5145, 56564), (5370, 54194), (5530, 52626), (6265, 46452), (6636, 43855), (6860, 42423), (7518, 38710), (7742, 37590), (8295, 35084), (8771, 33180), (10290, 28282), (10740, 27097), (11060, 26313), (11613, 25060), (12530, 23226), (14141, 20580), (15036, 19355), (15484, 18795), (16590, 17542)]