209214700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3797}}^1$

素因数の和:3859

約数の個数: 72

約数和(自身を含む): 494499600

約数和(自身を除く): 285284900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 380, 475, 551, 580, 725, 950, 1102, 1450, 1900, 2204, 2755, 2900, 3797, 5510, 7594, 11020, 13775, 15188, 18985, 27550, 37970, 55100, 72143, 75940, 94925, 110113, 144286, 189850, 220226, 288572, 360715, 379700, 440452, 550565, 721430, 1101130, 1442860, 1803575, 2092147, 2202260, 2752825, 3607150, 4184294, 5505650, 7214300, 8368588, 10460735, 11011300, 20921470, 41842940, 52303675, 104607350, 209214700]

約数ペア:

[(1, 209214700), (2, 104607350), (4, 52303675), (5, 41842940), (10, 20921470), (19, 11011300), (20, 10460735), (25, 8368588), (29, 7214300), (38, 5505650), (50, 4184294), (58, 3607150), (76, 2752825), (95, 2202260), (100, 2092147), (116, 1803575), (145, 1442860), (190, 1101130), (290, 721430), (380, 550565), (475, 440452), (551, 379700), (580, 360715), (725, 288572), (950, 220226), (1102, 189850), (1450, 144286), (1900, 110113), (2204, 94925), (2755, 75940), (2900, 72143), (3797, 55100), (5510, 37970), (7594, 27550), (11020, 18985), (13775, 15188)]