28414520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 66813120

約数和(自身を除く): 38398600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 73, 74, 146, 148, 185, 263, 292, 296, 365, 370, 526, 584, 730, 740, 1052, 1315, 1460, 1480, 2104, 2630, 2701, 2920, 5260, 5402, 9731, 10520, 10804, 13505, 19199, 19462, 21608, 27010, 38398, 38924, 48655, 54020, 76796, 77848, 95995, 97310, 108040, 153592, 191990, 194620, 383980, 389240, 710363, 767960, 1420726, 2841452, 3551815, 5682904, 7103630, 14207260, 28414520]

約数ペア:

[(1, 28414520), (2, 14207260), (4, 7103630), (5, 5682904), (8, 3551815), (10, 2841452), (20, 1420726), (37, 767960), (40, 710363), (73, 389240), (74, 383980), (146, 194620), (148, 191990), (185, 153592), (263, 108040), (292, 97310), (296, 95995), (365, 77848), (370, 76796), (526, 54020), (584, 48655), (730, 38924), (740, 38398), (1052, 27010), (1315, 21608), (1460, 19462), (1480, 19199), (2104, 13505), (2630, 10804), (2701, 10520), (2920, 9731), (5260, 5402)]