28658240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^2$

素因数の和:196

約数の個数: 84

約数和(自身を含む): 74387964

約数和(自身を除く): 45729724

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 83, 104, 130, 160, 166, 208, 260, 320, 332, 415, 416, 520, 664, 830, 832, 1040, 1079, 1328, 1660, 2080, 2158, 2656, 3320, 4160, 4316, 5312, 5395, 6640, 6889, 8632, 10790, 13280, 13778, 17264, 21580, 26560, 27556, 34445, 34528, 43160, 55112, 68890, 69056, 86320, 89557, 110224, 137780, 172640, 179114, 220448, 275560, 345280, 358228, 440896, 447785, 551120, 716456, 895570, 1102240, 1432912, 1791140, 2204480, 2865824, 3582280, 5731648, 7164560, 14329120, 28658240]

約数ペア:

[(1, 28658240), (2, 14329120), (4, 7164560), (5, 5731648), (8, 3582280), (10, 2865824), (13, 2204480), (16, 1791140), (20, 1432912), (26, 1102240), (32, 895570), (40, 716456), (52, 551120), (64, 447785), (65, 440896), (80, 358228), (83, 345280), (104, 275560), (130, 220448), (160, 179114), (166, 172640), (208, 137780), (260, 110224), (320, 89557), (332, 86320), (415, 69056), (416, 68890), (520, 55112), (664, 43160), (830, 34528), (832, 34445), (1040, 27556), (1079, 26560), (1328, 21580), (1660, 17264), (2080, 13778), (2158, 13280), (2656, 10790), (3320, 8632), (4160, 6889), (4316, 6640), (5312, 5395)]