20587100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 47913600

約数和(自身を除く): 27326500

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 100, 116, 124, 145, 155, 229, 290, 310, 458, 580, 620, 725, 775, 899, 916, 1145, 1450, 1550, 1798, 2290, 2900, 3100, 3596, 4495, 4580, 5725, 6641, 7099, 8990, 11450, 13282, 14198, 17980, 22475, 22900, 26564, 28396, 33205, 35495, 44950, 66410, 70990, 89900, 132820, 141980, 166025, 177475, 205871, 332050, 354950, 411742, 664100, 709900, 823484, 1029355, 2058710, 4117420, 5146775, 10293550, 20587100]

約数ペア:

[(1, 20587100), (2, 10293550), (4, 5146775), (5, 4117420), (10, 2058710), (20, 1029355), (25, 823484), (29, 709900), (31, 664100), (50, 411742), (58, 354950), (62, 332050), (100, 205871), (116, 177475), (124, 166025), (145, 141980), (155, 132820), (229, 89900), (290, 70990), (310, 66410), (458, 44950), (580, 35495), (620, 33205), (725, 28396), (775, 26564), (899, 22900), (916, 22475), (1145, 17980), (1450, 14198), (1550, 13282), (1798, 11450), (2290, 8990), (2900, 7099), (3100, 6641), (3596, 5725), (4495, 4580)]