64561120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31039}}^1$

素因数の和:31067

約数の個数: 48

約数和(自身を含む): 164263680

約数和(自身を除く): 99702560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 31039, 62078, 124156, 155195, 248312, 310390, 403507, 496624, 620780, 807014, 993248, 1241560, 1614028, 2017535, 2483120, 3228056, 4035070, 4966240, 6456112, 8070140, 12912224, 16140280, 32280560, 64561120]

約数ペア:

[(1, 64561120), (2, 32280560), (4, 16140280), (5, 12912224), (8, 8070140), (10, 6456112), (13, 4966240), (16, 4035070), (20, 3228056), (26, 2483120), (32, 2017535), (40, 1614028), (52, 1241560), (65, 993248), (80, 807014), (104, 620780), (130, 496624), (160, 403507), (208, 310390), (260, 248312), (416, 155195), (520, 124156), (1040, 62078), (2080, 31039)]