31387500

素因数分解:

$2^2\times 3^4\times 5^5\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 180

約数和(自身を含む): 105868224

約数和(自身を除く): 74480724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 31, 36, 45, 50, 54, 60, 62, 75, 81, 90, 93, 100, 108, 124, 125, 135, 150, 155, 162, 180, 186, 225, 250, 270, 279, 300, 310, 324, 372, 375, 405, 450, 465, 500, 540, 558, 620, 625, 675, 750, 775, 810, 837, 900, 930, 1116, 1125, 1250, 1350, 1395, 1500, 1550, 1620, 1674, 1860, 1875, 2025, 2250, 2325, 2500, 2511, 2700, 2790, 3100, 3125, 3348, 3375, 3750, 3875, 4050, 4185, 4500, 4650, 5022, 5580, 5625, 6250, 6750, 6975, 7500, 7750, 8100, 8370, 9300, 9375, 10044, 10125, 11250, 11625, 12500, 12555, 13500, 13950, 15500, 16740, 16875, 18750, 19375, 20250, 20925, 22500, 23250, 25110, 27900, 28125, 33750, 34875, 37500, 38750, 40500, 41850, 46500, 50220, 50625, 56250, 58125, 62775, 67500, 69750, 77500, 83700, 84375, 96875, 101250, 104625, 112500, 116250, 125550, 139500, 168750, 174375, 193750, 202500, 209250, 232500, 251100, 253125, 290625, 313875, 337500, 348750, 387500, 418500, 506250, 523125, 581250, 627750, 697500, 871875, 1012500, 1046250, 1162500, 1255500, 1569375, 1743750, 2092500, 2615625, 3138750, 3487500, 5231250, 6277500, 7846875, 10462500, 15693750, 31387500]

約数ペア:

[(1, 31387500), (2, 15693750), (3, 10462500), (4, 7846875), (5, 6277500), (6, 5231250), (9, 3487500), (10, 3138750), (12, 2615625), (15, 2092500), (18, 1743750), (20, 1569375), (25, 1255500), (27, 1162500), (30, 1046250), (31, 1012500), (36, 871875), (45, 697500), (50, 627750), (54, 581250), (60, 523125), (62, 506250), (75, 418500), (81, 387500), (90, 348750), (93, 337500), (100, 313875), (108, 290625), (124, 253125), (125, 251100), (135, 232500), (150, 209250), (155, 202500), (162, 193750), (180, 174375), (186, 168750), (225, 139500), (250, 125550), (270, 116250), (279, 112500), (300, 104625), (310, 101250), (324, 96875), (372, 84375), (375, 83700), (405, 77500), (450, 69750), (465, 67500), (500, 62775), (540, 58125), (558, 56250), (620, 50625), (625, 50220), (675, 46500), (750, 41850), (775, 40500), (810, 38750), (837, 37500), (900, 34875), (930, 33750), (1116, 28125), (1125, 27900), (1250, 25110), (1350, 23250), (1395, 22500), (1500, 20925), (1550, 20250), (1620, 19375), (1674, 18750), (1860, 16875), (1875, 16740), (2025, 15500), (2250, 13950), (2325, 13500), (2500, 12555), (2511, 12500), (2700, 11625), (2790, 11250), (3100, 10125), (3125, 10044), (3348, 9375), (3375, 9300), (3750, 8370), (3875, 8100), (4050, 7750), (4185, 7500), (4500, 6975), (4650, 6750), (5022, 6250), (5580, 5625)]