20691810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3769}}^1$

素因数の和:3843

約数の個数: 48

約数和(自身を含む): 54695160

約数和(自身を除く): 34003350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 3769, 5490, 7538, 11307, 18845, 22614, 33921, 37690, 56535, 67842, 113070, 169605, 229909, 339210, 459818, 689727, 1149545, 1379454, 2069181, 2299090, 3448635, 4138362, 6897270, 10345905, 20691810]

約数ペア:

[(1, 20691810), (2, 10345905), (3, 6897270), (5, 4138362), (6, 3448635), (9, 2299090), (10, 2069181), (15, 1379454), (18, 1149545), (30, 689727), (45, 459818), (61, 339210), (90, 229909), (122, 169605), (183, 113070), (305, 67842), (366, 56535), (549, 37690), (610, 33921), (915, 22614), (1098, 18845), (1830, 11307), (2745, 7538), (3769, 5490)]