245013990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1259}}^1$

素因数の和:1781

約数の個数: 64

約数和(自身を含む): 635040000

約数和(自身を除く): 390026010

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 499, 998, 1259, 1497, 2495, 2518, 2994, 3777, 4990, 6295, 6487, 7485, 7554, 12590, 12974, 14970, 16367, 18885, 19461, 32435, 32734, 37770, 38922, 49101, 64870, 81835, 97305, 98202, 163670, 194610, 245505, 491010, 628241, 1256482, 1884723, 3141205, 3769446, 6282410, 8167133, 9423615, 16334266, 18847230, 24501399, 40835665, 49002798, 81671330, 122506995, 245013990]

約数ペア:

[(1, 245013990), (2, 122506995), (3, 81671330), (5, 49002798), (6, 40835665), (10, 24501399), (13, 18847230), (15, 16334266), (26, 9423615), (30, 8167133), (39, 6282410), (65, 3769446), (78, 3141205), (130, 1884723), (195, 1256482), (390, 628241), (499, 491010), (998, 245505), (1259, 194610), (1497, 163670), (2495, 98202), (2518, 97305), (2994, 81835), (3777, 64870), (4990, 49101), (6295, 38922), (6487, 37770), (7485, 32734), (7554, 32435), (12590, 19461), (12974, 18885), (14970, 16367)]