15881970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 41457024

約数和(自身を除く): 25575054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 193, 195, 211, 386, 390, 422, 579, 633, 965, 1055, 1158, 1266, 1930, 2110, 2509, 2743, 2895, 3165, 5018, 5486, 5790, 6330, 7527, 8229, 12545, 13715, 15054, 16458, 25090, 27430, 37635, 40723, 41145, 75270, 81446, 82290, 122169, 203615, 244338, 407230, 529399, 610845, 1058798, 1221690, 1588197, 2646995, 3176394, 5293990, 7940985, 15881970]

約数ペア:

[(1, 15881970), (2, 7940985), (3, 5293990), (5, 3176394), (6, 2646995), (10, 1588197), (13, 1221690), (15, 1058798), (26, 610845), (30, 529399), (39, 407230), (65, 244338), (78, 203615), (130, 122169), (193, 82290), (195, 81446), (211, 75270), (386, 41145), (390, 40723), (422, 37635), (579, 27430), (633, 25090), (965, 16458), (1055, 15054), (1158, 13715), (1266, 12545), (1930, 8229), (2110, 7527), (2509, 6330), (2743, 5790), (2895, 5486), (3165, 5018)]