405183740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{82021}}^1$

素因数の和:82062

約数の個数: 48

約数和(自身を含む): 964578720

約数和(自身を除く): 559394980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 82021, 164042, 328084, 410105, 820210, 1066273, 1558399, 1640420, 2132546, 3116798, 4265092, 5331365, 6233596, 7791995, 10662730, 15583990, 20259187, 21325460, 31167980, 40518374, 81036748, 101295935, 202591870, 405183740]

約数ペア:

[(1, 405183740), (2, 202591870), (4, 101295935), (5, 81036748), (10, 40518374), (13, 31167980), (19, 21325460), (20, 20259187), (26, 15583990), (38, 10662730), (52, 7791995), (65, 6233596), (76, 5331365), (95, 4265092), (130, 3116798), (190, 2132546), (247, 1640420), (260, 1558399), (380, 1066273), (494, 820210), (988, 410105), (1235, 328084), (2470, 164042), (4940, 82021)]