20010330400

素因数分解:

$2^5\times 5^2\times {\mathrm{2467}}^1\times {\mathrm{10139}}^1$

素因数の和:12626

約数の個数: 72

約数和(自身を含む): 48874840560

約数和(自身を除く): 28864510160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 2467, 4934, 9868, 10139, 12335, 19736, 20278, 24670, 39472, 40556, 49340, 50695, 61675, 78944, 81112, 98680, 101390, 123350, 162224, 197360, 202780, 246700, 253475, 324448, 394720, 405560, 493400, 506950, 811120, 986800, 1013900, 1622240, 1973600, 2027800, 4055600, 8111200, 25012913, 50025826, 100051652, 125064565, 200103304, 250129130, 400206608, 500258260, 625322825, 800413216, 1000516520, 1250645650, 2001033040, 2501291300, 4002066080, 5002582600, 10005165200, 20010330400]

約数ペア:

[(1, 20010330400), (2, 10005165200), (4, 5002582600), (5, 4002066080), (8, 2501291300), (10, 2001033040), (16, 1250645650), (20, 1000516520), (25, 800413216), (32, 625322825), (40, 500258260), (50, 400206608), (80, 250129130), (100, 200103304), (160, 125064565), (200, 100051652), (400, 50025826), (800, 25012913), (2467, 8111200), (4934, 4055600), (9868, 2027800), (10139, 1973600), (12335, 1622240), (19736, 1013900), (20278, 986800), (24670, 811120), (39472, 506950), (40556, 493400), (49340, 405560), (50695, 394720), (61675, 324448), (78944, 253475), (81112, 246700), (98680, 202780), (101390, 197360), (123350, 162224)]