20012148

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 55449576

約数和(自身を除く): 35437428

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 701, 732, 793, 1098, 1402, 1586, 2103, 2196, 2379, 2804, 3172, 4206, 4758, 6309, 7137, 8412, 9113, 9516, 12618, 14274, 18226, 25236, 27339, 28548, 36452, 42761, 54678, 82017, 85522, 109356, 128283, 164034, 171044, 256566, 328068, 384849, 513132, 555893, 769698, 1111786, 1539396, 1667679, 2223572, 3335358, 5003037, 6670716, 10006074, 20012148]

約数ペア:

[(1, 20012148), (2, 10006074), (3, 6670716), (4, 5003037), (6, 3335358), (9, 2223572), (12, 1667679), (13, 1539396), (18, 1111786), (26, 769698), (36, 555893), (39, 513132), (52, 384849), (61, 328068), (78, 256566), (117, 171044), (122, 164034), (156, 128283), (183, 109356), (234, 85522), (244, 82017), (366, 54678), (468, 42761), (549, 36452), (701, 28548), (732, 27339), (793, 25236), (1098, 18226), (1402, 14274), (1586, 12618), (2103, 9516), (2196, 9113), (2379, 8412), (2804, 7137), (3172, 6309), (4206, 4758)]