2028640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 4959360

約数和(自身を除く): 2930720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 409, 496, 620, 818, 992, 1240, 1636, 2045, 2480, 3272, 4090, 4960, 6544, 8180, 12679, 13088, 16360, 25358, 32720, 50716, 63395, 65440, 101432, 126790, 202864, 253580, 405728, 507160, 1014320, 2028640]

約数ペア:

[(1, 2028640), (2, 1014320), (4, 507160), (5, 405728), (8, 253580), (10, 202864), (16, 126790), (20, 101432), (31, 65440), (32, 63395), (40, 50716), (62, 32720), (80, 25358), (124, 16360), (155, 13088), (160, 12679), (248, 8180), (310, 6544), (409, 4960), (496, 4090), (620, 3272), (818, 2480), (992, 2045), (1240, 1636)]