278356920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1$

素因数の和:1005

約数の個数: 128

約数和(自身を含む): 870704640

約数和(自身を除く): 592347720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 71, 74, 111, 120, 142, 148, 185, 213, 222, 284, 296, 355, 370, 426, 444, 555, 568, 710, 740, 852, 883, 888, 1065, 1110, 1420, 1480, 1704, 1766, 2130, 2220, 2627, 2649, 2840, 3532, 4260, 4415, 4440, 5254, 5298, 7064, 7881, 8520, 8830, 10508, 10596, 13135, 13245, 15762, 17660, 21016, 21192, 26270, 26490, 31524, 32671, 35320, 39405, 52540, 52980, 62693, 63048, 65342, 78810, 98013, 105080, 105960, 125386, 130684, 157620, 163355, 188079, 196026, 250772, 261368, 313465, 315240, 326710, 376158, 392052, 490065, 501544, 626930, 653420, 752316, 784104, 940395, 980130, 1253860, 1306840, 1504632, 1880790, 1960260, 2319641, 2507720, 3761580, 3920520, 4639282, 6958923, 7523160, 9278564, 11598205, 13917846, 18557128, 23196410, 27835692, 34794615, 46392820, 55671384, 69589230, 92785640, 139178460, 278356920]

約数ペア:

[(1, 278356920), (2, 139178460), (3, 92785640), (4, 69589230), (5, 55671384), (6, 46392820), (8, 34794615), (10, 27835692), (12, 23196410), (15, 18557128), (20, 13917846), (24, 11598205), (30, 9278564), (37, 7523160), (40, 6958923), (60, 4639282), (71, 3920520), (74, 3761580), (111, 2507720), (120, 2319641), (142, 1960260), (148, 1880790), (185, 1504632), (213, 1306840), (222, 1253860), (284, 980130), (296, 940395), (355, 784104), (370, 752316), (426, 653420), (444, 626930), (555, 501544), (568, 490065), (710, 392052), (740, 376158), (852, 326710), (883, 315240), (888, 313465), (1065, 261368), (1110, 250772), (1420, 196026), (1480, 188079), (1704, 163355), (1766, 157620), (2130, 130684), (2220, 125386), (2627, 105960), (2649, 105080), (2840, 98013), (3532, 78810), (4260, 65342), (4415, 63048), (4440, 62693), (5254, 52980), (5298, 52540), (7064, 39405), (7881, 35320), (8520, 32671), (8830, 31524), (10508, 26490), (10596, 26270), (13135, 21192), (13245, 21016), (15762, 17660)]