20720232

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 63705600

約数和(自身を除く): 42985368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 47, 52, 54, 72, 78, 94, 104, 108, 117, 141, 156, 157, 188, 216, 234, 282, 312, 314, 351, 376, 423, 468, 471, 564, 611, 628, 702, 846, 936, 942, 1128, 1222, 1256, 1269, 1404, 1413, 1692, 1833, 1884, 2041, 2444, 2538, 2808, 2826, 3384, 3666, 3768, 4082, 4239, 4888, 5076, 5499, 5652, 6123, 7332, 7379, 8164, 8478, 10152, 10998, 11304, 12246, 14664, 14758, 16328, 16497, 16956, 18369, 21996, 22137, 24492, 29516, 32994, 33912, 36738, 43992, 44274, 48984, 55107, 59032, 65988, 66411, 73476, 88548, 95927, 110214, 131976, 132822, 146952, 177096, 191854, 199233, 220428, 265644, 287781, 383708, 398466, 440856, 531288, 575562, 767416, 796932, 863343, 1151124, 1593864, 1726686, 2302248, 2590029, 3453372, 5180058, 6906744, 10360116, 20720232]

約数ペア:

[(1, 20720232), (2, 10360116), (3, 6906744), (4, 5180058), (6, 3453372), (8, 2590029), (9, 2302248), (12, 1726686), (13, 1593864), (18, 1151124), (24, 863343), (26, 796932), (27, 767416), (36, 575562), (39, 531288), (47, 440856), (52, 398466), (54, 383708), (72, 287781), (78, 265644), (94, 220428), (104, 199233), (108, 191854), (117, 177096), (141, 146952), (156, 132822), (157, 131976), (188, 110214), (216, 95927), (234, 88548), (282, 73476), (312, 66411), (314, 65988), (351, 59032), (376, 55107), (423, 48984), (468, 44274), (471, 43992), (564, 36738), (611, 33912), (628, 32994), (702, 29516), (846, 24492), (936, 22137), (942, 21996), (1128, 18369), (1222, 16956), (1256, 16497), (1269, 16328), (1404, 14758), (1413, 14664), (1692, 12246), (1833, 11304), (1884, 10998), (2041, 10152), (2444, 8478), (2538, 8164), (2808, 7379), (2826, 7332), (3384, 6123), (3666, 5652), (3768, 5499), (4082, 5076), (4239, 4888)]