15201940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{991}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 19795820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 991, 1180, 1534, 1982, 3068, 3835, 3964, 4955, 7670, 9910, 12883, 15340, 19820, 25766, 51532, 58469, 64415, 116938, 128830, 233876, 257660, 292345, 584690, 760097, 1169380, 1520194, 3040388, 3800485, 7600970, 15201940]

約数ペア:

[(1, 15201940), (2, 7600970), (4, 3800485), (5, 3040388), (10, 1520194), (13, 1169380), (20, 760097), (26, 584690), (52, 292345), (59, 257660), (65, 233876), (118, 128830), (130, 116938), (236, 64415), (260, 58469), (295, 51532), (590, 25766), (767, 19820), (991, 15340), (1180, 12883), (1534, 9910), (1982, 7670), (3068, 4955), (3835, 3964)]