656383480

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1\times {\mathrm{1013}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 1502504640

約数和(自身を除く): 846121160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 167, 194, 334, 388, 485, 668, 776, 835, 970, 1013, 1336, 1670, 1940, 2026, 3340, 3880, 4052, 5065, 6680, 8104, 10130, 16199, 20260, 32398, 40520, 64796, 80995, 98261, 129592, 161990, 169171, 196522, 323980, 338342, 393044, 491305, 647960, 676684, 786088, 845855, 982610, 1353368, 1691710, 1965220, 3383420, 3930440, 6766840, 16409587, 32819174, 65638348, 82047935, 131276696, 164095870, 328191740, 656383480]

約数ペア:

[(1, 656383480), (2, 328191740), (4, 164095870), (5, 131276696), (8, 82047935), (10, 65638348), (20, 32819174), (40, 16409587), (97, 6766840), (167, 3930440), (194, 3383420), (334, 1965220), (388, 1691710), (485, 1353368), (668, 982610), (776, 845855), (835, 786088), (970, 676684), (1013, 647960), (1336, 491305), (1670, 393044), (1940, 338342), (2026, 323980), (3340, 196522), (3880, 169171), (4052, 161990), (5065, 129592), (6680, 98261), (8104, 80995), (10130, 64796), (16199, 40520), (20260, 32398)]