128572020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42017}}^1$

素因数の和:42049

約数の個数: 72

約数和(自身を含む): 412952904

約数和(自身を除く): 284380884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 42017, 84034, 126051, 168068, 210085, 252102, 378153, 420170, 504204, 630255, 714289, 756306, 840340, 1260510, 1428578, 1512612, 1890765, 2142867, 2521020, 2857156, 3571445, 3781530, 4285734, 6428601, 7142890, 7563060, 8571468, 10714335, 12857202, 14285780, 21428670, 25714404, 32143005, 42857340, 64286010, 128572020]

約数ペア:

[(1, 128572020), (2, 64286010), (3, 42857340), (4, 32143005), (5, 25714404), (6, 21428670), (9, 14285780), (10, 12857202), (12, 10714335), (15, 8571468), (17, 7563060), (18, 7142890), (20, 6428601), (30, 4285734), (34, 3781530), (36, 3571445), (45, 2857156), (51, 2521020), (60, 2142867), (68, 1890765), (85, 1512612), (90, 1428578), (102, 1260510), (153, 840340), (170, 756306), (180, 714289), (204, 630255), (255, 504204), (306, 420170), (340, 378153), (510, 252102), (612, 210085), (765, 168068), (1020, 126051), (1530, 84034), (3060, 42017)]