19872060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 60916800

約数和(自身を除く): 41044740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 73, 78, 130, 146, 156, 195, 219, 260, 292, 349, 365, 390, 438, 698, 730, 780, 876, 949, 1047, 1095, 1396, 1460, 1745, 1898, 2094, 2190, 2847, 3490, 3796, 4188, 4380, 4537, 4745, 5235, 5694, 6980, 9074, 9490, 10470, 11388, 13611, 14235, 18148, 18980, 20940, 22685, 25477, 27222, 28470, 45370, 50954, 54444, 56940, 68055, 76431, 90740, 101908, 127385, 136110, 152862, 254770, 272220, 305724, 331201, 382155, 509540, 662402, 764310, 993603, 1324804, 1528620, 1656005, 1987206, 3312010, 3974412, 4968015, 6624020, 9936030, 19872060]

約数ペア:

[(1, 19872060), (2, 9936030), (3, 6624020), (4, 4968015), (5, 3974412), (6, 3312010), (10, 1987206), (12, 1656005), (13, 1528620), (15, 1324804), (20, 993603), (26, 764310), (30, 662402), (39, 509540), (52, 382155), (60, 331201), (65, 305724), (73, 272220), (78, 254770), (130, 152862), (146, 136110), (156, 127385), (195, 101908), (219, 90740), (260, 76431), (292, 68055), (349, 56940), (365, 54444), (390, 50954), (438, 45370), (698, 28470), (730, 27222), (780, 25477), (876, 22685), (949, 20940), (1047, 18980), (1095, 18148), (1396, 14235), (1460, 13611), (1745, 11388), (1898, 10470), (2094, 9490), (2190, 9074), (2847, 6980), (3490, 5694), (3796, 5235), (4188, 4745), (4380, 4537)]