64563980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248323}}^1$

素因数の和:248345

約数の個数: 24

約数和(自身を含む): 146014512

約数和(自身を除く): 81450532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248323, 496646, 993292, 1241615, 2483230, 3228199, 4966460, 6456398, 12912796, 16140995, 32281990, 64563980]

約数ペア:

[(1, 64563980), (2, 32281990), (4, 16140995), (5, 12912796), (10, 6456398), (13, 4966460), (20, 3228199), (26, 2483230), (52, 1241615), (65, 993292), (130, 496646), (260, 248323)]