28125700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 65308320

約数和(自身を除く): 37182620

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 113, 131, 190, 226, 262, 380, 452, 475, 524, 565, 655, 950, 1130, 1310, 1900, 2147, 2260, 2489, 2620, 2825, 3275, 4294, 4978, 5650, 6550, 8588, 9956, 10735, 11300, 12445, 13100, 14803, 21470, 24890, 29606, 42940, 49780, 53675, 59212, 62225, 74015, 107350, 124450, 148030, 214700, 248900, 281257, 296060, 370075, 562514, 740150, 1125028, 1406285, 1480300, 2812570, 5625140, 7031425, 14062850, 28125700]

約数ペア:

[(1, 28125700), (2, 14062850), (4, 7031425), (5, 5625140), (10, 2812570), (19, 1480300), (20, 1406285), (25, 1125028), (38, 740150), (50, 562514), (76, 370075), (95, 296060), (100, 281257), (113, 248900), (131, 214700), (190, 148030), (226, 124450), (262, 107350), (380, 74015), (452, 62225), (475, 59212), (524, 53675), (565, 49780), (655, 42940), (950, 29606), (1130, 24890), (1310, 21470), (1900, 14803), (2147, 13100), (2260, 12445), (2489, 11300), (2620, 10735), (2825, 9956), (3275, 8588), (4294, 6550), (4978, 5650)]