20014220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1699}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 45696000

約数和(自身を除く): 25681780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1699, 2356, 2945, 3398, 5890, 6796, 8495, 11780, 16990, 32281, 33980, 52669, 64562, 105338, 129124, 161405, 210676, 263345, 322810, 526690, 645620, 1000711, 1053380, 2001422, 4002844, 5003555, 10007110, 20014220]

約数ペア:

[(1, 20014220), (2, 10007110), (4, 5003555), (5, 4002844), (10, 2001422), (19, 1053380), (20, 1000711), (31, 645620), (38, 526690), (62, 322810), (76, 263345), (95, 210676), (124, 161405), (155, 129124), (190, 105338), (310, 64562), (380, 52669), (589, 33980), (620, 32281), (1178, 16990), (1699, 11780), (2356, 8495), (2945, 6796), (3398, 5890)]