40778920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{659}}^1$

素因数の和:707

約数の個数: 128

約数和(自身を含む): 119750400

約数和(自身を除く): 78971480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 364, 442, 455, 476, 520, 595, 659, 680, 728, 884, 910, 952, 1105, 1190, 1318, 1547, 1768, 1820, 2210, 2380, 2636, 3094, 3295, 3640, 4420, 4613, 4760, 5272, 6188, 6590, 7735, 8567, 8840, 9226, 11203, 12376, 13180, 15470, 17134, 18452, 22406, 23065, 26360, 30940, 34268, 36904, 42835, 44812, 46130, 56015, 59969, 61880, 68536, 78421, 85670, 89624, 92260, 112030, 119938, 145639, 156842, 171340, 184520, 224060, 239876, 291278, 299845, 313684, 342680, 392105, 448120, 479752, 582556, 599690, 627368, 728195, 784210, 1019473, 1165112, 1199380, 1456390, 1568420, 2038946, 2398760, 2912780, 3136840, 4077892, 5097365, 5825560, 8155784, 10194730, 20389460, 40778920]

約数ペア:

[(1, 40778920), (2, 20389460), (4, 10194730), (5, 8155784), (7, 5825560), (8, 5097365), (10, 4077892), (13, 3136840), (14, 2912780), (17, 2398760), (20, 2038946), (26, 1568420), (28, 1456390), (34, 1199380), (35, 1165112), (40, 1019473), (52, 784210), (56, 728195), (65, 627368), (68, 599690), (70, 582556), (85, 479752), (91, 448120), (104, 392105), (119, 342680), (130, 313684), (136, 299845), (140, 291278), (170, 239876), (182, 224060), (221, 184520), (238, 171340), (260, 156842), (280, 145639), (340, 119938), (364, 112030), (442, 92260), (455, 89624), (476, 85670), (520, 78421), (595, 68536), (659, 61880), (680, 59969), (728, 56015), (884, 46130), (910, 44812), (952, 42835), (1105, 36904), (1190, 34268), (1318, 30940), (1547, 26360), (1768, 23065), (1820, 22406), (2210, 18452), (2380, 17134), (2636, 15470), (3094, 13180), (3295, 12376), (3640, 11203), (4420, 9226), (4613, 8840), (4760, 8567), (5272, 7735), (6188, 6590)]