201719960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1201}}^1$

素因数の和:1261

約数の個数: 128

約数和(自身を含む): 545227200

約数和(自身を除く): 343507240

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 884, 988, 1105, 1201, 1235, 1292, 1615, 1768, 1976, 2210, 2402, 2470, 2584, 3230, 4199, 4420, 4804, 4940, 6005, 6460, 8398, 8840, 9608, 9880, 12010, 12920, 15613, 16796, 20417, 20995, 22819, 24020, 31226, 33592, 40834, 41990, 45638, 48040, 62452, 78065, 81668, 83980, 91276, 102085, 114095, 124904, 156130, 163336, 167960, 182552, 204170, 228190, 265421, 296647, 312260, 387923, 408340, 456380, 530842, 593294, 624520, 775846, 816680, 912760, 1061684, 1186588, 1327105, 1483235, 1551692, 1939615, 2123368, 2373176, 2654210, 2966470, 3103384, 3879230, 5042999, 5308420, 5932940, 7758460, 10085998, 10616840, 11865880, 15516920, 20171996, 25214995, 40343992, 50429990, 100859980, 201719960]

約数ペア:

[(1, 201719960), (2, 100859980), (4, 50429990), (5, 40343992), (8, 25214995), (10, 20171996), (13, 15516920), (17, 11865880), (19, 10616840), (20, 10085998), (26, 7758460), (34, 5932940), (38, 5308420), (40, 5042999), (52, 3879230), (65, 3103384), (68, 2966470), (76, 2654210), (85, 2373176), (95, 2123368), (104, 1939615), (130, 1551692), (136, 1483235), (152, 1327105), (170, 1186588), (190, 1061684), (221, 912760), (247, 816680), (260, 775846), (323, 624520), (340, 593294), (380, 530842), (442, 456380), (494, 408340), (520, 387923), (646, 312260), (680, 296647), (760, 265421), (884, 228190), (988, 204170), (1105, 182552), (1201, 167960), (1235, 163336), (1292, 156130), (1615, 124904), (1768, 114095), (1976, 102085), (2210, 91276), (2402, 83980), (2470, 81668), (2584, 78065), (3230, 62452), (4199, 48040), (4420, 45638), (4804, 41990), (4940, 40834), (6005, 33592), (6460, 31226), (8398, 24020), (8840, 22819), (9608, 20995), (9880, 20417), (12010, 16796), (12920, 15613)]