81563490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1123}}^1$

素因数の和:1408

約数の個数: 64

約数和(自身を含む): 218505600

約数和(自身を除く): 136942110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 269, 270, 538, 807, 1123, 1345, 1614, 2246, 2421, 2690, 3369, 4035, 4842, 5615, 6738, 7263, 8070, 10107, 11230, 12105, 14526, 16845, 20214, 24210, 30321, 33690, 36315, 50535, 60642, 72630, 101070, 151605, 302087, 303210, 604174, 906261, 1510435, 1812522, 2718783, 3020870, 4531305, 5437566, 8156349, 9062610, 13593915, 16312698, 27187830, 40781745, 81563490]

約数ペア:

[(1, 81563490), (2, 40781745), (3, 27187830), (5, 16312698), (6, 13593915), (9, 9062610), (10, 8156349), (15, 5437566), (18, 4531305), (27, 3020870), (30, 2718783), (45, 1812522), (54, 1510435), (90, 906261), (135, 604174), (269, 303210), (270, 302087), (538, 151605), (807, 101070), (1123, 72630), (1345, 60642), (1614, 50535), (2246, 36315), (2421, 33690), (2690, 30321), (3369, 24210), (4035, 20214), (4842, 16845), (5615, 14526), (6738, 12105), (7263, 11230), (8070, 10107)]