261538620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2423}}^1$

素因数の和:2699

約数の個数: 96

約数和(自身を含む): 840526848

約数和(自身を除く): 578988228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 257, 420, 514, 771, 1028, 1285, 1542, 1799, 2423, 2570, 3084, 3598, 3855, 4846, 5140, 5397, 7196, 7269, 7710, 8995, 9692, 10794, 12115, 14538, 15420, 16961, 17990, 21588, 24230, 26985, 29076, 33922, 35980, 36345, 48460, 50883, 53970, 67844, 72690, 84805, 101766, 107940, 145380, 169610, 203532, 254415, 339220, 508830, 622711, 1017660, 1245422, 1868133, 2490844, 3113555, 3736266, 4358977, 6227110, 7472532, 8717954, 9340665, 12454220, 13076931, 17435908, 18681330, 21794885, 26153862, 37362660, 43589770, 52307724, 65384655, 87179540, 130769310, 261538620]

約数ペア:

[(1, 261538620), (2, 130769310), (3, 87179540), (4, 65384655), (5, 52307724), (6, 43589770), (7, 37362660), (10, 26153862), (12, 21794885), (14, 18681330), (15, 17435908), (20, 13076931), (21, 12454220), (28, 9340665), (30, 8717954), (35, 7472532), (42, 6227110), (60, 4358977), (70, 3736266), (84, 3113555), (105, 2490844), (140, 1868133), (210, 1245422), (257, 1017660), (420, 622711), (514, 508830), (771, 339220), (1028, 254415), (1285, 203532), (1542, 169610), (1799, 145380), (2423, 107940), (2570, 101766), (3084, 84805), (3598, 72690), (3855, 67844), (4846, 53970), (5140, 50883), (5397, 48460), (7196, 36345), (7269, 35980), (7710, 33922), (8995, 29076), (9692, 26985), (10794, 24230), (12115, 21588), (14538, 17990), (15420, 16961)]