19967580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:480

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 42931620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 103, 108, 135, 180, 206, 270, 309, 359, 412, 515, 540, 618, 718, 927, 1030, 1077, 1236, 1436, 1545, 1795, 1854, 2060, 2154, 2781, 3090, 3231, 3590, 3708, 4308, 4635, 5385, 5562, 6180, 6462, 7180, 9270, 9693, 10770, 11124, 12924, 13905, 16155, 18540, 19386, 21540, 27810, 32310, 36977, 38772, 48465, 55620, 64620, 73954, 96930, 110931, 147908, 184885, 193860, 221862, 332793, 369770, 443724, 554655, 665586, 739540, 998379, 1109310, 1331172, 1663965, 1996758, 2218620, 3327930, 3993516, 4991895, 6655860, 9983790, 19967580]

約数ペア:

[(1, 19967580), (2, 9983790), (3, 6655860), (4, 4991895), (5, 3993516), (6, 3327930), (9, 2218620), (10, 1996758), (12, 1663965), (15, 1331172), (18, 1109310), (20, 998379), (27, 739540), (30, 665586), (36, 554655), (45, 443724), (54, 369770), (60, 332793), (90, 221862), (103, 193860), (108, 184885), (135, 147908), (180, 110931), (206, 96930), (270, 73954), (309, 64620), (359, 55620), (412, 48465), (515, 38772), (540, 36977), (618, 32310), (718, 27810), (927, 21540), (1030, 19386), (1077, 18540), (1236, 16155), (1436, 13905), (1545, 12924), (1795, 11124), (1854, 10770), (2060, 9693), (2154, 9270), (2781, 7180), (3090, 6462), (3231, 6180), (3590, 5562), (3708, 5385), (4308, 4635)]