321553960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{88339}}^1$

素因数の和:88370

約数の個数: 64

約数和(自身を含む): 890467200

約数和(自身を除く): 568913240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 88339, 176678, 353356, 441695, 618373, 706712, 883390, 1148407, 1236746, 1766780, 2296814, 2473492, 3091865, 3533560, 4593628, 4946984, 5742035, 6183730, 8038849, 9187256, 11484070, 12367460, 16077698, 22968140, 24734920, 32155396, 40194245, 45936280, 64310792, 80388490, 160776980, 321553960]

約数ペア:

[(1, 321553960), (2, 160776980), (4, 80388490), (5, 64310792), (7, 45936280), (8, 40194245), (10, 32155396), (13, 24734920), (14, 22968140), (20, 16077698), (26, 12367460), (28, 11484070), (35, 9187256), (40, 8038849), (52, 6183730), (56, 5742035), (65, 4946984), (70, 4593628), (91, 3533560), (104, 3091865), (130, 2473492), (140, 2296814), (182, 1766780), (260, 1236746), (280, 1148407), (364, 883390), (455, 706712), (520, 618373), (728, 441695), (910, 353356), (1820, 176678), (3640, 88339)]