31411900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 74637584

約数和(自身を除く): 43225684

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 260, 292, 325, 331, 365, 650, 662, 730, 949, 1300, 1324, 1460, 1655, 1825, 1898, 3310, 3650, 3796, 4303, 4745, 6620, 7300, 8275, 8606, 9490, 16550, 17212, 18980, 21515, 23725, 24163, 33100, 43030, 47450, 48326, 86060, 94900, 96652, 107575, 120815, 215150, 241630, 314119, 430300, 483260, 604075, 628238, 1208150, 1256476, 1570595, 2416300, 3141190, 6282380, 7852975, 15705950, 31411900]

約数ペア:

[(1, 31411900), (2, 15705950), (4, 7852975), (5, 6282380), (10, 3141190), (13, 2416300), (20, 1570595), (25, 1256476), (26, 1208150), (50, 628238), (52, 604075), (65, 483260), (73, 430300), (100, 314119), (130, 241630), (146, 215150), (260, 120815), (292, 107575), (325, 96652), (331, 94900), (365, 86060), (650, 48326), (662, 47450), (730, 43030), (949, 33100), (1300, 24163), (1324, 23725), (1460, 21515), (1655, 18980), (1825, 17212), (1898, 16550), (3310, 9490), (3650, 8606), (3796, 8275), (4303, 7300), (4745, 6620)]