131219540

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1823}}^1$

素因数の和:1952

約数の個数: 48

約数和(自身を含む): 284981760

約数和(自身を除く): 153762220

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 590, 610, 1180, 1220, 1823, 3599, 3646, 7198, 7292, 9115, 14396, 17995, 18230, 35990, 36460, 71980, 107557, 111203, 215114, 222406, 430228, 444812, 537785, 556015, 1075570, 1112030, 2151140, 2224060, 6560977, 13121954, 26243908, 32804885, 65609770, 131219540]

約数ペア:

[(1, 131219540), (2, 65609770), (4, 32804885), (5, 26243908), (10, 13121954), (20, 6560977), (59, 2224060), (61, 2151140), (118, 1112030), (122, 1075570), (236, 556015), (244, 537785), (295, 444812), (305, 430228), (590, 222406), (610, 215114), (1180, 111203), (1220, 107557), (1823, 71980), (3599, 36460), (3646, 35990), (7198, 18230), (7292, 17995), (9115, 14396)]