31218750

素因数分解:

$2^1\times 3^3\times 5^6\times {\mathrm{37}}^1$

素因数の和:78

約数の個数: 112

約数和(自身を含む): 89061360

約数和(自身を除く): 57842610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 37, 45, 50, 54, 74, 75, 90, 111, 125, 135, 150, 185, 222, 225, 250, 270, 333, 370, 375, 450, 555, 625, 666, 675, 750, 925, 999, 1110, 1125, 1250, 1350, 1665, 1850, 1875, 1998, 2250, 2775, 3125, 3330, 3375, 3750, 4625, 4995, 5550, 5625, 6250, 6750, 8325, 9250, 9375, 9990, 11250, 13875, 15625, 16650, 16875, 18750, 23125, 24975, 27750, 28125, 31250, 33750, 41625, 46250, 46875, 49950, 56250, 69375, 83250, 84375, 93750, 115625, 124875, 138750, 140625, 168750, 208125, 231250, 249750, 281250, 346875, 416250, 421875, 578125, 624375, 693750, 843750, 1040625, 1156250, 1248750, 1734375, 2081250, 3121875, 3468750, 5203125, 6243750, 10406250, 15609375, 31218750]

約数ペア:

[(1, 31218750), (2, 15609375), (3, 10406250), (5, 6243750), (6, 5203125), (9, 3468750), (10, 3121875), (15, 2081250), (18, 1734375), (25, 1248750), (27, 1156250), (30, 1040625), (37, 843750), (45, 693750), (50, 624375), (54, 578125), (74, 421875), (75, 416250), (90, 346875), (111, 281250), (125, 249750), (135, 231250), (150, 208125), (185, 168750), (222, 140625), (225, 138750), (250, 124875), (270, 115625), (333, 93750), (370, 84375), (375, 83250), (450, 69375), (555, 56250), (625, 49950), (666, 46875), (675, 46250), (750, 41625), (925, 33750), (999, 31250), (1110, 28125), (1125, 27750), (1250, 24975), (1350, 23125), (1665, 18750), (1850, 16875), (1875, 16650), (1998, 15625), (2250, 13875), (2775, 11250), (3125, 9990), (3330, 9375), (3375, 9250), (3750, 8325), (4625, 6750), (4995, 6250), (5550, 5625)]