20110360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 28619240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 563, 760, 893, 940, 1126, 1786, 1880, 2252, 2815, 3572, 4465, 4504, 5630, 7144, 8930, 10697, 11260, 17860, 21394, 22520, 26461, 35720, 42788, 52922, 53485, 85576, 105844, 106970, 132305, 211688, 213940, 264610, 427880, 502759, 529220, 1005518, 1058440, 2011036, 2513795, 4022072, 5027590, 10055180, 20110360]

約数ペア:

[(1, 20110360), (2, 10055180), (4, 5027590), (5, 4022072), (8, 2513795), (10, 2011036), (19, 1058440), (20, 1005518), (38, 529220), (40, 502759), (47, 427880), (76, 264610), (94, 213940), (95, 211688), (152, 132305), (188, 106970), (190, 105844), (235, 85576), (376, 53485), (380, 52922), (470, 42788), (563, 35720), (760, 26461), (893, 22520), (940, 21394), (1126, 17860), (1786, 11260), (1880, 10697), (2252, 8930), (2815, 7144), (3572, 5630), (4465, 4504)]