89903020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 195300000

約数和(自身を除く): 105396980

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 590, 610, 1180, 1220, 1249, 2498, 3599, 4996, 6245, 7198, 12490, 14396, 17995, 24980, 35990, 71980, 73691, 76189, 147382, 152378, 294764, 304756, 368455, 380945, 736910, 761890, 1473820, 1523780, 4495151, 8990302, 17980604, 22475755, 44951510, 89903020]

約数ペア:

[(1, 89903020), (2, 44951510), (4, 22475755), (5, 17980604), (10, 8990302), (20, 4495151), (59, 1523780), (61, 1473820), (118, 761890), (122, 736910), (236, 380945), (244, 368455), (295, 304756), (305, 294764), (590, 152378), (610, 147382), (1180, 76189), (1220, 73691), (1249, 71980), (2498, 35990), (3599, 24980), (4996, 17995), (6245, 14396), (7198, 12490)]