218311580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{347}}^1\times {\mathrm{379}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 466542720

約数和(自身を除く): 248231140

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 347, 379, 415, 694, 758, 830, 1388, 1516, 1660, 1735, 1895, 3470, 3790, 6940, 7580, 28801, 31457, 57602, 62914, 115204, 125828, 131513, 144005, 157285, 263026, 288010, 314570, 526052, 576020, 629140, 657565, 1315130, 2630260, 10915579, 21831158, 43662316, 54577895, 109155790, 218311580]

約数ペア:

[(1, 218311580), (2, 109155790), (4, 54577895), (5, 43662316), (10, 21831158), (20, 10915579), (83, 2630260), (166, 1315130), (332, 657565), (347, 629140), (379, 576020), (415, 526052), (694, 314570), (758, 288010), (830, 263026), (1388, 157285), (1516, 144005), (1660, 131513), (1735, 125828), (1895, 115204), (3470, 62914), (3790, 57602), (6940, 31457), (7580, 28801)]