19706940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 67223520

約数和(自身を除く): 47516580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 37, 44, 45, 55, 60, 66, 74, 90, 99, 110, 111, 132, 148, 165, 180, 185, 198, 220, 222, 269, 330, 333, 370, 396, 407, 444, 495, 538, 555, 660, 666, 740, 807, 814, 990, 1076, 1110, 1221, 1332, 1345, 1614, 1628, 1665, 1980, 2035, 2220, 2421, 2442, 2690, 2959, 3228, 3330, 3663, 4035, 4070, 4842, 4884, 5380, 5918, 6105, 6660, 7326, 8070, 8140, 8877, 9684, 9953, 11836, 12105, 12210, 14652, 14795, 16140, 17754, 18315, 19906, 24210, 24420, 26631, 29590, 29859, 35508, 36630, 39812, 44385, 48420, 49765, 53262, 59180, 59718, 73260, 88770, 89577, 99530, 106524, 109483, 119436, 133155, 149295, 177540, 179154, 199060, 218966, 266310, 298590, 328449, 358308, 437932, 447885, 532620, 547415, 597180, 656898, 895770, 985347, 1094830, 1313796, 1642245, 1791540, 1970694, 2189660, 3284490, 3941388, 4926735, 6568980, 9853470, 19706940]

約数ペア:

[(1, 19706940), (2, 9853470), (3, 6568980), (4, 4926735), (5, 3941388), (6, 3284490), (9, 2189660), (10, 1970694), (11, 1791540), (12, 1642245), (15, 1313796), (18, 1094830), (20, 985347), (22, 895770), (30, 656898), (33, 597180), (36, 547415), (37, 532620), (44, 447885), (45, 437932), (55, 358308), (60, 328449), (66, 298590), (74, 266310), (90, 218966), (99, 199060), (110, 179154), (111, 177540), (132, 149295), (148, 133155), (165, 119436), (180, 109483), (185, 106524), (198, 99530), (220, 89577), (222, 88770), (269, 73260), (330, 59718), (333, 59180), (370, 53262), (396, 49765), (407, 48420), (444, 44385), (495, 39812), (538, 36630), (555, 35508), (660, 29859), (666, 29590), (740, 26631), (807, 24420), (814, 24210), (990, 19906), (1076, 18315), (1110, 17754), (1221, 16140), (1332, 14795), (1345, 14652), (1614, 12210), (1628, 12105), (1665, 11836), (1980, 9953), (2035, 9684), (2220, 8877), (2421, 8140), (2442, 8070), (2690, 7326), (2959, 6660), (3228, 6105), (3330, 5918), (3663, 5380), (4035, 4884), (4070, 4842)]