81966608

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3413}}^1$

素因数の和:3519

約数の個数: 40

約数和(自身を含む): 169334400

約数和(自身を除く): 87367792

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 632, 1264, 1501, 3002, 3413, 6004, 6826, 12008, 13652, 24016, 27304, 54608, 64847, 129694, 259388, 269627, 518776, 539254, 1037552, 1078508, 2157016, 4314032, 5122913, 10245826, 20491652, 40983304, 81966608]

約数ペア:

[(1, 81966608), (2, 40983304), (4, 20491652), (8, 10245826), (16, 5122913), (19, 4314032), (38, 2157016), (76, 1078508), (79, 1037552), (152, 539254), (158, 518776), (304, 269627), (316, 259388), (632, 129694), (1264, 64847), (1501, 54608), (3002, 27304), (3413, 24016), (6004, 13652), (6826, 12008)]