8481980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 21591360

約数和(自身を除く): 13109380

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 101, 130, 170, 190, 202, 221, 247, 260, 323, 340, 380, 404, 442, 494, 505, 646, 884, 988, 1010, 1105, 1235, 1292, 1313, 1615, 1717, 1919, 2020, 2210, 2470, 2626, 3230, 3434, 3838, 4199, 4420, 4940, 5252, 6460, 6565, 6868, 7676, 8398, 8585, 9595, 13130, 16796, 17170, 19190, 20995, 22321, 24947, 26260, 32623, 34340, 38380, 41990, 44642, 49894, 65246, 83980, 89284, 99788, 111605, 124735, 130492, 163115, 223210, 249470, 326230, 424099, 446420, 498940, 652460, 848198, 1696396, 2120495, 4240990, 8481980]

約数ペア:

[(1, 8481980), (2, 4240990), (4, 2120495), (5, 1696396), (10, 848198), (13, 652460), (17, 498940), (19, 446420), (20, 424099), (26, 326230), (34, 249470), (38, 223210), (52, 163115), (65, 130492), (68, 124735), (76, 111605), (85, 99788), (95, 89284), (101, 83980), (130, 65246), (170, 49894), (190, 44642), (202, 41990), (221, 38380), (247, 34340), (260, 32623), (323, 26260), (340, 24947), (380, 22321), (404, 20995), (442, 19190), (494, 17170), (505, 16796), (646, 13130), (884, 9595), (988, 8585), (1010, 8398), (1105, 7676), (1235, 6868), (1292, 6565), (1313, 6460), (1615, 5252), (1717, 4940), (1919, 4420), (2020, 4199), (2210, 3838), (2470, 3434), (2626, 3230)]