81228640

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22073}}^1$

素因数の和:22111

約数の個数: 48

約数和(自身を含む): 200255328

約数和(自身を除く): 119026688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 22073, 44146, 88292, 110365, 176584, 220730, 353168, 441460, 507679, 706336, 882920, 1015358, 1765840, 2030716, 2538395, 3531680, 4061432, 5076790, 8122864, 10153580, 16245728, 20307160, 40614320, 81228640]

約数ペア:

[(1, 81228640), (2, 40614320), (4, 20307160), (5, 16245728), (8, 10153580), (10, 8122864), (16, 5076790), (20, 4061432), (23, 3531680), (32, 2538395), (40, 2030716), (46, 1765840), (80, 1015358), (92, 882920), (115, 706336), (160, 507679), (184, 441460), (230, 353168), (368, 220730), (460, 176584), (736, 110365), (920, 88292), (1840, 44146), (3680, 22073)]