78530180

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1091}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 170614080

約数和(自身を除く): 92083900

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 236, 244, 295, 305, 590, 610, 1091, 1180, 1220, 2182, 3599, 4364, 5455, 7198, 10910, 14396, 17995, 21820, 35990, 64369, 66551, 71980, 128738, 133102, 257476, 266204, 321845, 332755, 643690, 665510, 1287380, 1331020, 3926509, 7853018, 15706036, 19632545, 39265090, 78530180]

約数ペア:

[(1, 78530180), (2, 39265090), (4, 19632545), (5, 15706036), (10, 7853018), (20, 3926509), (59, 1331020), (61, 1287380), (118, 665510), (122, 643690), (236, 332755), (244, 321845), (295, 266204), (305, 257476), (590, 133102), (610, 128738), (1091, 71980), (1180, 66551), (1220, 64369), (2182, 35990), (3599, 21820), (4364, 17995), (5455, 14396), (7198, 10910)]