20031700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:857

約数の個数: 72

約数和(自身を含む): 49337120

約数和(自身を除く): 29305420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 811, 950, 988, 1235, 1300, 1622, 1900, 2470, 3244, 4055, 4940, 6175, 8110, 10543, 12350, 15409, 16220, 20275, 21086, 24700, 30818, 40550, 42172, 52715, 61636, 77045, 81100, 105430, 154090, 200317, 210860, 263575, 308180, 385225, 400634, 527150, 770450, 801268, 1001585, 1054300, 1540900, 2003170, 4006340, 5007925, 10015850, 20031700]

約数ペア:

[(1, 20031700), (2, 10015850), (4, 5007925), (5, 4006340), (10, 2003170), (13, 1540900), (19, 1054300), (20, 1001585), (25, 801268), (26, 770450), (38, 527150), (50, 400634), (52, 385225), (65, 308180), (76, 263575), (95, 210860), (100, 200317), (130, 154090), (190, 105430), (247, 81100), (260, 77045), (325, 61636), (380, 52715), (475, 42172), (494, 40550), (650, 30818), (811, 24700), (950, 21086), (988, 20275), (1235, 16220), (1300, 15409), (1622, 12350), (1900, 10543), (2470, 8110), (3244, 6175), (4055, 4940)]