1865430040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{2137}}^1$

素因数の和:2444

約数の個数: 64

約数和(自身を含む): 4256330400

約数和(自身を除く): 2390900360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 157, 278, 314, 556, 628, 695, 785, 1112, 1256, 1390, 1570, 2137, 2780, 3140, 4274, 5560, 6280, 8548, 10685, 17096, 21370, 21823, 42740, 43646, 85480, 87292, 109115, 174584, 218230, 297043, 335509, 436460, 594086, 671018, 872920, 1188172, 1342036, 1485215, 1677545, 2376344, 2684072, 2970430, 3355090, 5940860, 6710180, 11881720, 13420360, 46635751, 93271502, 186543004, 233178755, 373086008, 466357510, 932715020, 1865430040]

約数ペア:

[(1, 1865430040), (2, 932715020), (4, 466357510), (5, 373086008), (8, 233178755), (10, 186543004), (20, 93271502), (40, 46635751), (139, 13420360), (157, 11881720), (278, 6710180), (314, 5940860), (556, 3355090), (628, 2970430), (695, 2684072), (785, 2376344), (1112, 1677545), (1256, 1485215), (1390, 1342036), (1570, 1188172), (2137, 872920), (2780, 671018), (3140, 594086), (4274, 436460), (5560, 335509), (6280, 297043), (8548, 218230), (10685, 174584), (17096, 109115), (21370, 87292), (21823, 85480), (42740, 43646)]