28695940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15767}}^1$

素因数の和:15796

約数の個数: 48

約数和(自身を含む): 74172672

約数和(自身を除く): 45476732

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15767, 31534, 63068, 78835, 110369, 157670, 204971, 220738, 315340, 409942, 441476, 551845, 819884, 1024855, 1103690, 1434797, 2049710, 2207380, 2869594, 4099420, 5739188, 7173985, 14347970, 28695940]

約数ペア:

[(1, 28695940), (2, 14347970), (4, 7173985), (5, 5739188), (7, 4099420), (10, 2869594), (13, 2207380), (14, 2049710), (20, 1434797), (26, 1103690), (28, 1024855), (35, 819884), (52, 551845), (65, 441476), (70, 409942), (91, 315340), (130, 220738), (140, 204971), (182, 157670), (260, 110369), (364, 78835), (455, 63068), (910, 31534), (1820, 15767)]