81014860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12541}}^1$

素因数の和:12586

約数の個数: 48

約数和(自身を含む): 189635040

約数和(自身を除く): 108620180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 12541, 25082, 50164, 62705, 125410, 213197, 238279, 250820, 426394, 476558, 852788, 953116, 1065985, 1191395, 2131970, 2382790, 4050743, 4263940, 4765580, 8101486, 16202972, 20253715, 40507430, 81014860]

約数ペア:

[(1, 81014860), (2, 40507430), (4, 20253715), (5, 16202972), (10, 8101486), (17, 4765580), (19, 4263940), (20, 4050743), (34, 2382790), (38, 2131970), (68, 1191395), (76, 1065985), (85, 953116), (95, 852788), (170, 476558), (190, 426394), (323, 250820), (340, 238279), (380, 213197), (646, 125410), (1292, 62705), (1615, 50164), (3230, 25082), (6460, 12541)]