20687520980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4423}}^1\times {\mathrm{33409}}^1$

素因数の和:37848

約数の個数: 48

約数和(自身を含む): 49662762240

約数和(自身を除く): 28975241260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4423, 8846, 17692, 22115, 30961, 33409, 44230, 61922, 66818, 88460, 123844, 133636, 154805, 167045, 233863, 309610, 334090, 467726, 619220, 668180, 935452, 1169315, 2338630, 4677260, 147768007, 295536014, 591072028, 738840035, 1034376049, 1477680070, 2068752098, 2955360140, 4137504196, 5171880245, 10343760490, 20687520980]

約数ペア:

[(1, 20687520980), (2, 10343760490), (4, 5171880245), (5, 4137504196), (7, 2955360140), (10, 2068752098), (14, 1477680070), (20, 1034376049), (28, 738840035), (35, 591072028), (70, 295536014), (140, 147768007), (4423, 4677260), (8846, 2338630), (17692, 1169315), (22115, 935452), (30961, 668180), (33409, 619220), (44230, 467726), (61922, 334090), (66818, 309610), (88460, 233863), (123844, 167045), (133636, 154805)]