30731740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6221}}^1$

素因数の和:6262

約数の個数: 48

約数和(自身を含む): 73170720

約数和(自身を除く): 42438980

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, 6221, 12442, 24884, 31105, 62210, 80873, 118199, 124420, 161746, 236398, 323492, 404365, 472796, 590995, 808730, 1181990, 1536587, 1617460, 2363980, 3073174, 6146348, 7682935, 15365870, 30731740]

約数ペア:

[(1, 30731740), (2, 15365870), (4, 7682935), (5, 6146348), (10, 3073174), (13, 2363980), (19, 1617460), (20, 1536587), (26, 1181990), (38, 808730), (52, 590995), (65, 472796), (76, 404365), (95, 323492), (130, 236398), (190, 161746), (247, 124420), (260, 118199), (380, 80873), (494, 62210), (988, 31105), (1235, 24884), (2470, 12442), (4940, 6221)]