212940840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{253501}}^1$

素因数の和:253522

約数の個数: 64

約数和(自身を含む): 730085760

約数和(自身を除く): 517144920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 253501, 507002, 760503, 1014004, 1267505, 1521006, 1774507, 2028008, 2535010, 3042012, 3549014, 3802515, 5070020, 5323521, 6084024, 7098028, 7605030, 8872535, 10140040, 10647042, 14196056, 15210060, 17745070, 21294084, 26617605, 30420120, 35490140, 42588168, 53235210, 70980280, 106470420, 212940840]

約数ペア:

[(1, 212940840), (2, 106470420), (3, 70980280), (4, 53235210), (5, 42588168), (6, 35490140), (7, 30420120), (8, 26617605), (10, 21294084), (12, 17745070), (14, 15210060), (15, 14196056), (20, 10647042), (21, 10140040), (24, 8872535), (28, 7605030), (30, 7098028), (35, 6084024), (40, 5323521), (42, 5070020), (56, 3802515), (60, 3549014), (70, 3042012), (84, 2535010), (105, 2028008), (120, 1774507), (140, 1521006), (168, 1267505), (210, 1014004), (280, 760503), (420, 507002), (840, 253501)]