20038500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 65131248

約数和(自身を除く): 45092748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 61, 73, 75, 90, 100, 122, 125, 146, 150, 180, 183, 219, 225, 244, 250, 292, 300, 305, 365, 366, 375, 438, 450, 500, 549, 610, 657, 730, 732, 750, 876, 900, 915, 1095, 1098, 1125, 1220, 1314, 1460, 1500, 1525, 1825, 1830, 2190, 2196, 2250, 2628, 2745, 3050, 3285, 3650, 3660, 4380, 4453, 4500, 4575, 5475, 5490, 6100, 6570, 7300, 7625, 8906, 9125, 9150, 10950, 10980, 13140, 13359, 13725, 15250, 16425, 17812, 18250, 18300, 21900, 22265, 22875, 26718, 27375, 27450, 30500, 32850, 36500, 40077, 44530, 45750, 53436, 54750, 54900, 65700, 66795, 68625, 80154, 82125, 89060, 91500, 109500, 111325, 133590, 137250, 160308, 164250, 200385, 222650, 267180, 274500, 328500, 333975, 400770, 445300, 556625, 667950, 801540, 1001925, 1113250, 1335900, 1669875, 2003850, 2226500, 3339750, 4007700, 5009625, 6679500, 10019250, 20038500]

約数ペア:

[(1, 20038500), (2, 10019250), (3, 6679500), (4, 5009625), (5, 4007700), (6, 3339750), (9, 2226500), (10, 2003850), (12, 1669875), (15, 1335900), (18, 1113250), (20, 1001925), (25, 801540), (30, 667950), (36, 556625), (45, 445300), (50, 400770), (60, 333975), (61, 328500), (73, 274500), (75, 267180), (90, 222650), (100, 200385), (122, 164250), (125, 160308), (146, 137250), (150, 133590), (180, 111325), (183, 109500), (219, 91500), (225, 89060), (244, 82125), (250, 80154), (292, 68625), (300, 66795), (305, 65700), (365, 54900), (366, 54750), (375, 53436), (438, 45750), (450, 44530), (500, 40077), (549, 36500), (610, 32850), (657, 30500), (730, 27450), (732, 27375), (750, 26718), (876, 22875), (900, 22265), (915, 21900), (1095, 18300), (1098, 18250), (1125, 17812), (1220, 16425), (1314, 15250), (1460, 13725), (1500, 13359), (1525, 13140), (1825, 10980), (1830, 10950), (2190, 9150), (2196, 9125), (2250, 8906), (2628, 7625), (2745, 7300), (3050, 6570), (3285, 6100), (3650, 5490), (3660, 5475), (4380, 4575), (4453, 4500)]