20432500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{743}}^1$

素因数の和:778

約数の個数: 60

約数和(自身を含む): 48809376

約数和(自身を除く): 28376876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 743, 1100, 1250, 1375, 1486, 2500, 2750, 2972, 3715, 5500, 6875, 7430, 8173, 13750, 14860, 16346, 18575, 27500, 32692, 37150, 40865, 74300, 81730, 92875, 163460, 185750, 204325, 371500, 408650, 464375, 817300, 928750, 1021625, 1857500, 2043250, 4086500, 5108125, 10216250, 20432500]

約数ペア:

[(1, 20432500), (2, 10216250), (4, 5108125), (5, 4086500), (10, 2043250), (11, 1857500), (20, 1021625), (22, 928750), (25, 817300), (44, 464375), (50, 408650), (55, 371500), (100, 204325), (110, 185750), (125, 163460), (220, 92875), (250, 81730), (275, 74300), (500, 40865), (550, 37150), (625, 32692), (743, 27500), (1100, 18575), (1250, 16346), (1375, 14860), (1486, 13750), (2500, 8173), (2750, 7430), (2972, 6875), (3715, 5500)]