157951820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19597}}^1$

素因数の和:19650

約数の個数: 48

約数和(自身を含む): 368755968

約数和(自身を除く): 210804148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 19597, 39194, 78388, 97985, 195970, 254761, 391940, 509522, 607507, 1019044, 1215014, 1273805, 2430028, 2547610, 3037535, 5095220, 6075070, 7897591, 12150140, 15795182, 31590364, 39487955, 78975910, 157951820]

約数ペア:

[(1, 157951820), (2, 78975910), (4, 39487955), (5, 31590364), (10, 15795182), (13, 12150140), (20, 7897591), (26, 6075070), (31, 5095220), (52, 3037535), (62, 2547610), (65, 2430028), (124, 1273805), (130, 1215014), (155, 1019044), (260, 607507), (310, 509522), (403, 391940), (620, 254761), (806, 195970), (1612, 97985), (2015, 78388), (4030, 39194), (8060, 19597)]