19728160

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7253}}^1$

素因数の和:7285

約数の個数: 48

約数和(自身を含む): 49356216

約数和(自身を除く): 29628056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7253, 14506, 29012, 36265, 58024, 72530, 116048, 123301, 145060, 232096, 246602, 290120, 493204, 580240, 616505, 986408, 1160480, 1233010, 1972816, 2466020, 3945632, 4932040, 9864080, 19728160]

約数ペア:

[(1, 19728160), (2, 9864080), (4, 4932040), (5, 3945632), (8, 2466020), (10, 1972816), (16, 1233010), (17, 1160480), (20, 986408), (32, 616505), (34, 580240), (40, 493204), (68, 290120), (80, 246602), (85, 232096), (136, 145060), (160, 123301), (170, 116048), (272, 72530), (340, 58024), (544, 36265), (680, 29012), (1360, 14506), (2720, 7253)]