64927180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2801}}^1$

素因数の和:2890

約数の個数: 48

約数和(自身を含む): 145928160

約数和(自身を除く): 81000980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1159, 1220, 2318, 2801, 4636, 5602, 5795, 11204, 11590, 14005, 23180, 28010, 53219, 56020, 106438, 170861, 212876, 266095, 341722, 532190, 683444, 854305, 1064380, 1708610, 3246359, 3417220, 6492718, 12985436, 16231795, 32463590, 64927180]

約数ペア:

[(1, 64927180), (2, 32463590), (4, 16231795), (5, 12985436), (10, 6492718), (19, 3417220), (20, 3246359), (38, 1708610), (61, 1064380), (76, 854305), (95, 683444), (122, 532190), (190, 341722), (244, 266095), (305, 212876), (380, 170861), (610, 106438), (1159, 56020), (1220, 53219), (2318, 28010), (2801, 23180), (4636, 14005), (5602, 11590), (5795, 11204)]