21641250

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:253

約数の個数: 80

約数和(自身を含む): 56232000

約数和(自身を除く): 34590750

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 125, 145, 150, 174, 199, 250, 290, 375, 398, 435, 597, 625, 725, 750, 870, 995, 1194, 1250, 1450, 1875, 1990, 2175, 2985, 3625, 3750, 4350, 4975, 5771, 5970, 7250, 9950, 10875, 11542, 14925, 17313, 18125, 21750, 24875, 28855, 29850, 34626, 36250, 49750, 54375, 57710, 74625, 86565, 108750, 124375, 144275, 149250, 173130, 248750, 288550, 373125, 432825, 721375, 746250, 865650, 1442750, 2164125, 3606875, 4328250, 7213750, 10820625, 21641250]

約数ペア:

[(1, 21641250), (2, 10820625), (3, 7213750), (5, 4328250), (6, 3606875), (10, 2164125), (15, 1442750), (25, 865650), (29, 746250), (30, 721375), (50, 432825), (58, 373125), (75, 288550), (87, 248750), (125, 173130), (145, 149250), (150, 144275), (174, 124375), (199, 108750), (250, 86565), (290, 74625), (375, 57710), (398, 54375), (435, 49750), (597, 36250), (625, 34626), (725, 29850), (750, 28855), (870, 24875), (995, 21750), (1194, 18125), (1250, 17313), (1450, 14925), (1875, 11542), (1990, 10875), (2175, 9950), (2985, 7250), (3625, 5970), (3750, 5771), (4350, 4975)]