21730150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 44090928

約数和(自身を除く): 22360778

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 101, 130, 202, 325, 331, 505, 650, 662, 1010, 1313, 1655, 2525, 2626, 3310, 4303, 5050, 6565, 8275, 8606, 13130, 16550, 21515, 32825, 33431, 43030, 65650, 66862, 107575, 167155, 215150, 334310, 434603, 835775, 869206, 1671550, 2173015, 4346030, 10865075, 21730150]

約数ペア:

[(1, 21730150), (2, 10865075), (5, 4346030), (10, 2173015), (13, 1671550), (25, 869206), (26, 835775), (50, 434603), (65, 334310), (101, 215150), (130, 167155), (202, 107575), (325, 66862), (331, 65650), (505, 43030), (650, 33431), (662, 32825), (1010, 21515), (1313, 16550), (1655, 13130), (2525, 8606), (2626, 8275), (3310, 6565), (4303, 5050)]