217056420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5557}}^1$

素因数の和:5610

約数の個数: 144

約数和(自身を含む): 776875008

約数和(自身を除く): 559818588

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2170, 2604, 2790, 3255, 3906, 4340, 5557, 5580, 6510, 7812, 9765, 11114, 13020, 16671, 19530, 22228, 27785, 33342, 38899, 39060, 50013, 55570, 66684, 77798, 83355, 100026, 111140, 116697, 155596, 166710, 172267, 194495, 200052, 233394, 250065, 333420, 344534, 350091, 388990, 466788, 500130, 516801, 583485, 689068, 700182, 777980, 861335, 1000260, 1033602, 1166970, 1205869, 1400364, 1550403, 1722670, 1750455, 2067204, 2333940, 2411738, 2584005, 3100806, 3445340, 3500910, 3617607, 4823476, 5168010, 6029345, 6201612, 7001820, 7235214, 7752015, 10336020, 10852821, 12058690, 14470428, 15504030, 18088035, 21705642, 24117380, 31008060, 36176070, 43411284, 54264105, 72352140, 108528210, 217056420]

約数ペア:

[(1, 217056420), (2, 108528210), (3, 72352140), (4, 54264105), (5, 43411284), (6, 36176070), (7, 31008060), (9, 24117380), (10, 21705642), (12, 18088035), (14, 15504030), (15, 14470428), (18, 12058690), (20, 10852821), (21, 10336020), (28, 7752015), (30, 7235214), (31, 7001820), (35, 6201612), (36, 6029345), (42, 5168010), (45, 4823476), (60, 3617607), (62, 3500910), (63, 3445340), (70, 3100806), (84, 2584005), (90, 2411738), (93, 2333940), (105, 2067204), (124, 1750455), (126, 1722670), (140, 1550403), (155, 1400364), (180, 1205869), (186, 1166970), (210, 1033602), (217, 1000260), (252, 861335), (279, 777980), (310, 700182), (315, 689068), (372, 583485), (420, 516801), (434, 500130), (465, 466788), (558, 388990), (620, 350091), (630, 344534), (651, 333420), (868, 250065), (930, 233394), (1085, 200052), (1116, 194495), (1260, 172267), (1302, 166710), (1395, 155596), (1860, 116697), (1953, 111140), (2170, 100026), (2604, 83355), (2790, 77798), (3255, 66684), (3906, 55570), (4340, 50013), (5557, 39060), (5580, 38899), (6510, 33342), (7812, 27785), (9765, 22228), (11114, 19530), (13020, 16671)]