1640954560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25261}}^1$

素因数の和:25314

約数の個数: 112

約数和(自身を含む): 4619914560

約数和(自身を除く): 2978960000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 812, 928, 1015, 1120, 1160, 1624, 1856, 2030, 2240, 2320, 3248, 4060, 4640, 6496, 8120, 9280, 12992, 16240, 25261, 32480, 50522, 64960, 101044, 126305, 176827, 202088, 252610, 353654, 404176, 505220, 707308, 732569, 808352, 884135, 1010440, 1414616, 1465138, 1616704, 1768270, 2020880, 2829232, 2930276, 3536540, 3662845, 4041760, 5127983, 5658464, 5860552, 7073080, 7325690, 8083520, 10255966, 11316928, 11721104, 14146160, 14651380, 20511932, 23442208, 25639915, 28292320, 29302760, 41023864, 46884416, 51279830, 56584640, 58605520, 82047728, 102559660, 117211040, 164095456, 205119320, 234422080, 328190912, 410238640, 820477280, 1640954560]

約数ペア:

[(1, 1640954560), (2, 820477280), (4, 410238640), (5, 328190912), (7, 234422080), (8, 205119320), (10, 164095456), (14, 117211040), (16, 102559660), (20, 82047728), (28, 58605520), (29, 56584640), (32, 51279830), (35, 46884416), (40, 41023864), (56, 29302760), (58, 28292320), (64, 25639915), (70, 23442208), (80, 20511932), (112, 14651380), (116, 14146160), (140, 11721104), (145, 11316928), (160, 10255966), (203, 8083520), (224, 7325690), (232, 7073080), (280, 5860552), (290, 5658464), (320, 5127983), (406, 4041760), (448, 3662845), (464, 3536540), (560, 2930276), (580, 2829232), (812, 2020880), (928, 1768270), (1015, 1616704), (1120, 1465138), (1160, 1414616), (1624, 1010440), (1856, 884135), (2030, 808352), (2240, 732569), (2320, 707308), (3248, 505220), (4060, 404176), (4640, 353654), (6496, 252610), (8120, 202088), (9280, 176827), (12992, 126305), (16240, 101044), (25261, 64960), (32480, 50522)]