618765140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{90199}}^1$

素因数の和:90229

約数の個数: 48

約数和(自身を含む): 1515360000

約数和(自身を除く): 896594860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 90199, 180398, 360796, 450995, 631393, 901990, 1262786, 1803980, 2525572, 3156965, 4419751, 6313930, 8839502, 12627860, 17679004, 22098755, 30938257, 44197510, 61876514, 88395020, 123753028, 154691285, 309382570, 618765140]

約数ペア:

[(1, 618765140), (2, 309382570), (4, 154691285), (5, 123753028), (7, 88395020), (10, 61876514), (14, 44197510), (20, 30938257), (28, 22098755), (35, 17679004), (49, 12627860), (70, 8839502), (98, 6313930), (140, 4419751), (196, 3156965), (245, 2525572), (343, 1803980), (490, 1262786), (686, 901990), (980, 631393), (1372, 450995), (1715, 360796), (3430, 180398), (6860, 90199)]