517556780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 1218900480

約数和(自身を除く): 701343700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 157, 260, 310, 314, 403, 409, 620, 628, 785, 806, 818, 1570, 1612, 1636, 2015, 2041, 2045, 3140, 4030, 4082, 4090, 4867, 5317, 8060, 8164, 8180, 9734, 10205, 10634, 12679, 19468, 20410, 21268, 24335, 25358, 26585, 40820, 48670, 50716, 53170, 63271, 63395, 64213, 97340, 106340, 126542, 126790, 128426, 164827, 253084, 253580, 256852, 316355, 321065, 329654, 632710, 642130, 659308, 824135, 834769, 1265420, 1284260, 1648270, 1669538, 1990603, 3296540, 3339076, 3981206, 4173845, 7962412, 8347690, 9953015, 16695380, 19906030, 25877839, 39812060, 51755678, 103511356, 129389195, 258778390, 517556780]

約数ペア:

[(1, 517556780), (2, 258778390), (4, 129389195), (5, 103511356), (10, 51755678), (13, 39812060), (20, 25877839), (26, 19906030), (31, 16695380), (52, 9953015), (62, 8347690), (65, 7962412), (124, 4173845), (130, 3981206), (155, 3339076), (157, 3296540), (260, 1990603), (310, 1669538), (314, 1648270), (403, 1284260), (409, 1265420), (620, 834769), (628, 824135), (785, 659308), (806, 642130), (818, 632710), (1570, 329654), (1612, 321065), (1636, 316355), (2015, 256852), (2041, 253580), (2045, 253084), (3140, 164827), (4030, 128426), (4082, 126790), (4090, 126542), (4867, 106340), (5317, 97340), (8060, 64213), (8164, 63395), (8180, 63271), (9734, 53170), (10205, 50716), (10634, 48670), (12679, 40820), (19468, 26585), (20410, 25358), (21268, 24335)]