77412890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 152064000

約数和(自身を除く): 74651110

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 79, 109, 145, 155, 158, 218, 290, 310, 395, 545, 790, 899, 1090, 1798, 2291, 2449, 3161, 3379, 4495, 4582, 4898, 6322, 6758, 8611, 8990, 11455, 12245, 15805, 16895, 17222, 22910, 24490, 31610, 33790, 43055, 71021, 86110, 97991, 142042, 195982, 249719, 266941, 355105, 489955, 499438, 533882, 710210, 979910, 1248595, 1334705, 2497190, 2669410, 7741289, 15482578, 38706445, 77412890]

約数ペア:

[(1, 77412890), (2, 38706445), (5, 15482578), (10, 7741289), (29, 2669410), (31, 2497190), (58, 1334705), (62, 1248595), (79, 979910), (109, 710210), (145, 533882), (155, 499438), (158, 489955), (218, 355105), (290, 266941), (310, 249719), (395, 195982), (545, 142042), (790, 97991), (899, 86110), (1090, 71021), (1798, 43055), (2291, 33790), (2449, 31610), (3161, 24490), (3379, 22910), (4495, 17222), (4582, 16895), (4898, 15805), (6322, 12245), (6758, 11455), (8611, 8990)]