20082075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 16582245

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 479, 559, 645, 975, 1075, 1437, 1677, 2395, 2795, 3225, 6227, 7185, 8385, 11975, 13975, 18681, 20597, 31135, 35925, 41925, 61791, 93405, 102985, 155675, 267761, 308955, 467025, 514925, 803283, 1338805, 1544775, 4016415, 6694025, 20082075]

約数ペア:

[(1, 20082075), (3, 6694025), (5, 4016415), (13, 1544775), (15, 1338805), (25, 803283), (39, 514925), (43, 467025), (65, 308955), (75, 267761), (129, 155675), (195, 102985), (215, 93405), (325, 61791), (479, 41925), (559, 35925), (645, 31135), (975, 20597), (1075, 18681), (1437, 13975), (1677, 11975), (2395, 8385), (2795, 7185), (3225, 6227)]