19538450

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 37906056

約数和(自身を除く): 18367606

約数列:

[1, 2, 5, 10, 25, 50, 53, 73, 101, 106, 146, 202, 265, 365, 505, 530, 730, 1010, 1325, 1825, 2525, 2650, 3650, 3869, 5050, 5353, 7373, 7738, 10706, 14746, 19345, 26765, 36865, 38690, 53530, 73730, 96725, 133825, 184325, 193450, 267650, 368650, 390769, 781538, 1953845, 3907690, 9769225, 19538450]

約数ペア:

[(1, 19538450), (2, 9769225), (5, 3907690), (10, 1953845), (25, 781538), (50, 390769), (53, 368650), (73, 267650), (101, 193450), (106, 184325), (146, 133825), (202, 96725), (265, 73730), (365, 53530), (505, 38690), (530, 36865), (730, 26765), (1010, 19345), (1325, 14746), (1825, 10706), (2525, 7738), (2650, 7373), (3650, 5353), (3869, 5050)]