20684820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1201

約数の個数: 96

約数和(自身を含む): 65140992

約数和(自身を除く): 44456172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1153, 1196, 1380, 1495, 1794, 2306, 2990, 3459, 3588, 4485, 4612, 5765, 5980, 6918, 8970, 11530, 13836, 14989, 17295, 17940, 23060, 26519, 29978, 34590, 44967, 53038, 59956, 69180, 74945, 79557, 89934, 106076, 132595, 149890, 159114, 179868, 224835, 265190, 299780, 318228, 344747, 397785, 449670, 530380, 689494, 795570, 899340, 1034241, 1378988, 1591140, 1723735, 2068482, 3447470, 4136964, 5171205, 6894940, 10342410, 20684820]

約数ペア:

[(1, 20684820), (2, 10342410), (3, 6894940), (4, 5171205), (5, 4136964), (6, 3447470), (10, 2068482), (12, 1723735), (13, 1591140), (15, 1378988), (20, 1034241), (23, 899340), (26, 795570), (30, 689494), (39, 530380), (46, 449670), (52, 397785), (60, 344747), (65, 318228), (69, 299780), (78, 265190), (92, 224835), (115, 179868), (130, 159114), (138, 149890), (156, 132595), (195, 106076), (230, 89934), (260, 79557), (276, 74945), (299, 69180), (345, 59956), (390, 53038), (460, 44967), (598, 34590), (690, 29978), (780, 26519), (897, 23060), (1153, 17940), (1196, 17295), (1380, 14989), (1495, 13836), (1794, 11530), (2306, 8970), (2990, 6918), (3459, 5980), (3588, 5765), (4485, 4612)]