20824300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 52496640

約数和(自身を除く): 31672340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 175, 284, 350, 355, 419, 497, 700, 710, 838, 994, 1420, 1676, 1775, 1988, 2095, 2485, 2933, 3550, 4190, 4970, 5866, 7100, 8380, 9940, 10475, 11732, 12425, 14665, 20950, 24850, 29330, 29749, 41900, 49700, 58660, 59498, 73325, 118996, 146650, 148745, 208243, 293300, 297490, 416486, 594980, 743725, 832972, 1041215, 1487450, 2082430, 2974900, 4164860, 5206075, 10412150, 20824300]

約数ペア:

[(1, 20824300), (2, 10412150), (4, 5206075), (5, 4164860), (7, 2974900), (10, 2082430), (14, 1487450), (20, 1041215), (25, 832972), (28, 743725), (35, 594980), (50, 416486), (70, 297490), (71, 293300), (100, 208243), (140, 148745), (142, 146650), (175, 118996), (284, 73325), (350, 59498), (355, 58660), (419, 49700), (497, 41900), (700, 29749), (710, 29330), (838, 24850), (994, 20950), (1420, 14665), (1676, 12425), (1775, 11732), (1988, 10475), (2095, 9940), (2485, 8380), (2933, 7100), (3550, 5866), (4190, 4970)]