21412500

素因数分解:

$2^2\times 3^1\times 5^5\times {\mathrm{571}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 62558496

約数和(自身を除く): 41145996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 571, 625, 750, 1142, 1250, 1500, 1713, 1875, 2284, 2500, 2855, 3125, 3426, 3750, 5710, 6250, 6852, 7500, 8565, 9375, 11420, 12500, 14275, 17130, 18750, 28550, 34260, 37500, 42825, 57100, 71375, 85650, 142750, 171300, 214125, 285500, 356875, 428250, 713750, 856500, 1070625, 1427500, 1784375, 2141250, 3568750, 4282500, 5353125, 7137500, 10706250, 21412500]

約数ペア:

[(1, 21412500), (2, 10706250), (3, 7137500), (4, 5353125), (5, 4282500), (6, 3568750), (10, 2141250), (12, 1784375), (15, 1427500), (20, 1070625), (25, 856500), (30, 713750), (50, 428250), (60, 356875), (75, 285500), (100, 214125), (125, 171300), (150, 142750), (250, 85650), (300, 71375), (375, 57100), (500, 42825), (571, 37500), (625, 34260), (750, 28550), (1142, 18750), (1250, 17130), (1500, 14275), (1713, 12500), (1875, 11420), (2284, 9375), (2500, 8565), (2855, 7500), (3125, 6852), (3426, 6250), (3750, 5710)]