766589440

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4909}}^1$

素因数の和:4993

約数の個数: 80

約数和(自身を含む): 1868529960

約数和(自身を除く): 1101940520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 610, 640, 976, 1220, 1280, 1952, 2440, 2560, 3904, 4880, 4909, 7808, 9760, 9818, 15616, 19520, 19636, 24545, 31232, 39040, 39272, 49090, 78080, 78544, 98180, 156160, 157088, 196360, 299449, 314176, 392720, 598898, 628352, 785440, 1197796, 1256704, 1497245, 1570880, 2395592, 2513408, 2994490, 3141760, 4791184, 5988980, 6283520, 9582368, 11977960, 12567040, 19164736, 23955920, 38329472, 47911840, 76658944, 95823680, 153317888, 191647360, 383294720, 766589440]

約数ペア:

[(1, 766589440), (2, 383294720), (4, 191647360), (5, 153317888), (8, 95823680), (10, 76658944), (16, 47911840), (20, 38329472), (32, 23955920), (40, 19164736), (61, 12567040), (64, 11977960), (80, 9582368), (122, 6283520), (128, 5988980), (160, 4791184), (244, 3141760), (256, 2994490), (305, 2513408), (320, 2395592), (488, 1570880), (512, 1497245), (610, 1256704), (640, 1197796), (976, 785440), (1220, 628352), (1280, 598898), (1952, 392720), (2440, 314176), (2560, 299449), (3904, 196360), (4880, 157088), (4909, 156160), (7808, 98180), (9760, 78544), (9818, 78080), (15616, 49090), (19520, 39272), (19636, 39040), (24545, 31232)]