19719280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1531}}^1$

素因数の和:1574

約数の個数: 80

約数和(自身を含む): 54710784

約数和(自身を除く): 34991504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1531, 1610, 1840, 2576, 3062, 3220, 6124, 6440, 7655, 10717, 12248, 12880, 15310, 21434, 24496, 30620, 35213, 42868, 53585, 61240, 70426, 85736, 107170, 122480, 140852, 171472, 176065, 214340, 246491, 281704, 352130, 428680, 492982, 563408, 704260, 857360, 985964, 1232455, 1408520, 1971928, 2464910, 2817040, 3943856, 4929820, 9859640, 19719280]

約数ペア:

[(1, 19719280), (2, 9859640), (4, 4929820), (5, 3943856), (7, 2817040), (8, 2464910), (10, 1971928), (14, 1408520), (16, 1232455), (20, 985964), (23, 857360), (28, 704260), (35, 563408), (40, 492982), (46, 428680), (56, 352130), (70, 281704), (80, 246491), (92, 214340), (112, 176065), (115, 171472), (140, 140852), (161, 122480), (184, 107170), (230, 85736), (280, 70426), (322, 61240), (368, 53585), (460, 42868), (560, 35213), (644, 30620), (805, 24496), (920, 21434), (1288, 15310), (1531, 12880), (1610, 12248), (1840, 10717), (2576, 7655), (3062, 6440), (3220, 6124)]