644967648

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5557}}^1$

素因数の和:5617

約数の個数: 144

約数和(自身を含む): 2039296896

約数和(自身を除く): 1394329248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 48, 52, 62, 72, 78, 93, 96, 104, 117, 124, 144, 156, 186, 208, 234, 248, 279, 288, 312, 372, 403, 416, 468, 496, 558, 624, 744, 806, 936, 992, 1116, 1209, 1248, 1488, 1612, 1872, 2232, 2418, 2976, 3224, 3627, 3744, 4464, 4836, 5557, 6448, 7254, 8928, 9672, 11114, 12896, 14508, 16671, 19344, 22228, 29016, 33342, 38688, 44456, 50013, 58032, 66684, 72241, 88912, 100026, 116064, 133368, 144482, 172267, 177824, 200052, 216723, 266736, 288964, 344534, 400104, 433446, 516801, 533472, 577928, 650169, 689068, 800208, 866892, 1033602, 1155856, 1300338, 1378136, 1550403, 1600416, 1733784, 2067204, 2239471, 2311712, 2600676, 2756272, 3100806, 3467568, 4134408, 4478942, 5201352, 5512544, 6201612, 6718413, 6935136, 8268816, 8957884, 10402704, 12403224, 13436826, 16537632, 17915768, 20155239, 20805408, 24806448, 26873652, 35831536, 40310478, 49612896, 53747304, 71663072, 80620956, 107494608, 161241912, 214989216, 322483824, 644967648]

約数ペア:

[(1, 644967648), (2, 322483824), (3, 214989216), (4, 161241912), (6, 107494608), (8, 80620956), (9, 71663072), (12, 53747304), (13, 49612896), (16, 40310478), (18, 35831536), (24, 26873652), (26, 24806448), (31, 20805408), (32, 20155239), (36, 17915768), (39, 16537632), (48, 13436826), (52, 12403224), (62, 10402704), (72, 8957884), (78, 8268816), (93, 6935136), (96, 6718413), (104, 6201612), (117, 5512544), (124, 5201352), (144, 4478942), (156, 4134408), (186, 3467568), (208, 3100806), (234, 2756272), (248, 2600676), (279, 2311712), (288, 2239471), (312, 2067204), (372, 1733784), (403, 1600416), (416, 1550403), (468, 1378136), (496, 1300338), (558, 1155856), (624, 1033602), (744, 866892), (806, 800208), (936, 689068), (992, 650169), (1116, 577928), (1209, 533472), (1248, 516801), (1488, 433446), (1612, 400104), (1872, 344534), (2232, 288964), (2418, 266736), (2976, 216723), (3224, 200052), (3627, 177824), (3744, 172267), (4464, 144482), (4836, 133368), (5557, 116064), (6448, 100026), (7254, 88912), (8928, 72241), (9672, 66684), (11114, 58032), (12896, 50013), (14508, 44456), (16671, 38688), (19344, 33342), (22228, 29016)]