15691478680

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:665

約数の個数: 128

約数和(自身を含む): 36444038400

約数和(自身を除く): 20752559720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 109, 131, 166, 218, 262, 331, 332, 415, 436, 524, 545, 655, 662, 664, 830, 872, 1048, 1090, 1310, 1324, 1655, 1660, 2180, 2620, 2648, 3310, 3320, 4360, 5240, 6620, 9047, 10873, 13240, 14279, 18094, 21746, 27473, 28558, 36079, 36188, 43361, 43492, 45235, 54365, 54946, 57116, 71395, 72158, 72376, 86722, 86984, 90470, 108730, 109892, 114232, 137365, 142790, 144316, 173444, 180395, 180940, 216805, 217460, 219784, 274730, 285580, 288632, 346888, 360790, 361880, 433610, 434920, 549460, 571160, 721580, 867220, 1098920, 1185157, 1443160, 1734440, 2370314, 2994557, 3598963, 4726349, 4740628, 5925785, 5989114, 7197926, 9452698, 9481256, 11851570, 11978228, 14395852, 14972785, 17994815, 18905396, 23631745, 23703140, 23956456, 28791704, 29945570, 35989630, 37810792, 47263490, 47406280, 59891140, 71979260, 94526980, 119782280, 143958520, 189053960, 392286967, 784573934, 1569147868, 1961434835, 3138295736, 3922869670, 7845739340, 15691478680]

約数ペア:

[(1, 15691478680), (2, 7845739340), (4, 3922869670), (5, 3138295736), (8, 1961434835), (10, 1569147868), (20, 784573934), (40, 392286967), (83, 189053960), (109, 143958520), (131, 119782280), (166, 94526980), (218, 71979260), (262, 59891140), (331, 47406280), (332, 47263490), (415, 37810792), (436, 35989630), (524, 29945570), (545, 28791704), (655, 23956456), (662, 23703140), (664, 23631745), (830, 18905396), (872, 17994815), (1048, 14972785), (1090, 14395852), (1310, 11978228), (1324, 11851570), (1655, 9481256), (1660, 9452698), (2180, 7197926), (2620, 5989114), (2648, 5925785), (3310, 4740628), (3320, 4726349), (4360, 3598963), (5240, 2994557), (6620, 2370314), (9047, 1734440), (10873, 1443160), (13240, 1185157), (14279, 1098920), (18094, 867220), (21746, 721580), (27473, 571160), (28558, 549460), (36079, 434920), (36188, 433610), (43361, 361880), (43492, 360790), (45235, 346888), (54365, 288632), (54946, 285580), (57116, 274730), (71395, 219784), (72158, 217460), (72376, 216805), (86722, 180940), (86984, 180395), (90470, 173444), (108730, 144316), (109892, 142790), (114232, 137365)]