25289380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1091}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 56871360

約数和(自身を除く): 31581980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1091, 1159, 1220, 2182, 2318, 4364, 4636, 5455, 5795, 10910, 11590, 20729, 21820, 23180, 41458, 66551, 82916, 103645, 133102, 207290, 266204, 332755, 414580, 665510, 1264469, 1331020, 2528938, 5057876, 6322345, 12644690, 25289380]

約数ペア:

[(1, 25289380), (2, 12644690), (4, 6322345), (5, 5057876), (10, 2528938), (19, 1331020), (20, 1264469), (38, 665510), (61, 414580), (76, 332755), (95, 266204), (122, 207290), (190, 133102), (244, 103645), (305, 82916), (380, 66551), (610, 41458), (1091, 23180), (1159, 21820), (1220, 20729), (2182, 11590), (2318, 10910), (4364, 5795), (4636, 5455)]