19976360

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1013}}^1$

素因数の和:1070

約数の個数: 64

約数和(自身を含む): 49280400

約数和(自身を除く): 29304040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 986, 1013, 1160, 1972, 2026, 2465, 3944, 4052, 4930, 5065, 8104, 9860, 10130, 17221, 19720, 20260, 29377, 34442, 40520, 58754, 68884, 86105, 117508, 137768, 146885, 172210, 235016, 293770, 344420, 499409, 587540, 688840, 998818, 1175080, 1997636, 2497045, 3995272, 4994090, 9988180, 19976360]

約数ペア:

[(1, 19976360), (2, 9988180), (4, 4994090), (5, 3995272), (8, 2497045), (10, 1997636), (17, 1175080), (20, 998818), (29, 688840), (34, 587540), (40, 499409), (58, 344420), (68, 293770), (85, 235016), (116, 172210), (136, 146885), (145, 137768), (170, 117508), (232, 86105), (290, 68884), (340, 58754), (493, 40520), (580, 34442), (680, 29377), (986, 20260), (1013, 19720), (1160, 17221), (1972, 10130), (2026, 9860), (2465, 8104), (3944, 5065), (4052, 4930)]