145301720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1997}}^1$

素因数の和:2132

約数の個数: 64

約数和(自身を含む): 349570080

約数和(自身を除く): 204268360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 340, 428, 535, 680, 856, 1070, 1819, 1997, 2140, 3638, 3994, 4280, 7276, 7988, 9095, 9985, 14552, 15976, 18190, 19970, 33949, 36380, 39940, 67898, 72760, 79880, 135796, 169745, 213679, 271592, 339490, 427358, 678980, 854716, 1068395, 1357960, 1709432, 2136790, 3632543, 4273580, 7265086, 8547160, 14530172, 18162715, 29060344, 36325430, 72650860, 145301720]

約数ペア:

[(1, 145301720), (2, 72650860), (4, 36325430), (5, 29060344), (8, 18162715), (10, 14530172), (17, 8547160), (20, 7265086), (34, 4273580), (40, 3632543), (68, 2136790), (85, 1709432), (107, 1357960), (136, 1068395), (170, 854716), (214, 678980), (340, 427358), (428, 339490), (535, 271592), (680, 213679), (856, 169745), (1070, 135796), (1819, 79880), (1997, 72760), (2140, 67898), (3638, 39940), (3994, 36380), (4280, 33949), (7276, 19970), (7988, 18190), (9095, 15976), (9985, 14552)]