181991940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233323}}^1$

素因数の和:233348

約数の個数: 48

約数和(自身を含む): 548778048

約数和(自身を除く): 366786108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 233323, 466646, 699969, 933292, 1166615, 1399938, 2333230, 2799876, 3033199, 3499845, 4666460, 6066398, 6999690, 9099597, 12132796, 13999380, 15165995, 18199194, 30331990, 36398388, 45497985, 60663980, 90995970, 181991940]

約数ペア:

[(1, 181991940), (2, 90995970), (3, 60663980), (4, 45497985), (5, 36398388), (6, 30331990), (10, 18199194), (12, 15165995), (13, 13999380), (15, 12132796), (20, 9099597), (26, 6999690), (30, 6066398), (39, 4666460), (52, 3499845), (60, 3033199), (65, 2799876), (78, 2333230), (130, 1399938), (156, 1166615), (195, 933292), (260, 699969), (390, 466646), (780, 233323)]