81212250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 239616000

約数和(自身を除く): 158403750

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 31, 35, 42, 50, 62, 70, 75, 93, 105, 125, 150, 155, 175, 186, 210, 217, 250, 310, 350, 375, 434, 465, 499, 525, 651, 750, 775, 875, 930, 998, 1050, 1085, 1302, 1497, 1550, 1750, 2170, 2325, 2495, 2625, 2994, 3255, 3493, 3875, 4650, 4990, 5250, 5425, 6510, 6986, 7485, 7750, 10479, 10850, 11625, 12475, 14970, 15469, 16275, 17465, 20958, 23250, 24950, 27125, 30938, 32550, 34930, 37425, 46407, 52395, 54250, 62375, 74850, 77345, 81375, 87325, 92814, 104790, 108283, 124750, 154690, 162750, 174650, 187125, 216566, 232035, 261975, 324849, 374250, 386725, 436625, 464070, 523950, 541415, 649698, 773450, 873250, 1082830, 1160175, 1309875, 1624245, 1933625, 2320350, 2619750, 2707075, 3248490, 3867250, 5414150, 5800875, 8121225, 11601750, 13535375, 16242450, 27070750, 40606125, 81212250]

約数ペア:

[(1, 81212250), (2, 40606125), (3, 27070750), (5, 16242450), (6, 13535375), (7, 11601750), (10, 8121225), (14, 5800875), (15, 5414150), (21, 3867250), (25, 3248490), (30, 2707075), (31, 2619750), (35, 2320350), (42, 1933625), (50, 1624245), (62, 1309875), (70, 1160175), (75, 1082830), (93, 873250), (105, 773450), (125, 649698), (150, 541415), (155, 523950), (175, 464070), (186, 436625), (210, 386725), (217, 374250), (250, 324849), (310, 261975), (350, 232035), (375, 216566), (434, 187125), (465, 174650), (499, 162750), (525, 154690), (651, 124750), (750, 108283), (775, 104790), (875, 92814), (930, 87325), (998, 81375), (1050, 77345), (1085, 74850), (1302, 62375), (1497, 54250), (1550, 52395), (1750, 46407), (2170, 37425), (2325, 34930), (2495, 32550), (2625, 30938), (2994, 27125), (3255, 24950), (3493, 23250), (3875, 20958), (4650, 17465), (4990, 16275), (5250, 15469), (5425, 14970), (6510, 12475), (6986, 11625), (7485, 10850), (7750, 10479)]