904372420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{40123}}^1$

素因数の和:40169

約数の個数: 72

約数和(自身を含む): 2305364544

約数和(自身を除く): 1400992124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 40123, 80246, 160492, 200615, 280861, 401230, 561722, 802460, 922829, 1123444, 1404305, 1845658, 1966027, 2808610, 3691316, 3932054, 4614145, 5617220, 6459803, 7864108, 9228290, 9830135, 12919606, 18456580, 19660270, 25839212, 32299015, 39320540, 45218621, 64598030, 90437242, 129196060, 180874484, 226093105, 452186210, 904372420]

約数ペア:

[(1, 904372420), (2, 452186210), (4, 226093105), (5, 180874484), (7, 129196060), (10, 90437242), (14, 64598030), (20, 45218621), (23, 39320540), (28, 32299015), (35, 25839212), (46, 19660270), (49, 18456580), (70, 12919606), (92, 9830135), (98, 9228290), (115, 7864108), (140, 6459803), (161, 5617220), (196, 4614145), (230, 3932054), (245, 3691316), (322, 2808610), (460, 1966027), (490, 1845658), (644, 1404305), (805, 1123444), (980, 922829), (1127, 802460), (1610, 561722), (2254, 401230), (3220, 280861), (4508, 200615), (5635, 160492), (11270, 80246), (22540, 40123)]