40780208

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 94470144

約数和(自身を除く): 53689936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 61, 94, 112, 122, 127, 188, 244, 254, 329, 376, 427, 488, 508, 658, 752, 854, 889, 976, 1016, 1316, 1708, 1778, 2032, 2632, 2867, 3416, 3556, 5264, 5734, 5969, 6832, 7112, 7747, 11468, 11938, 14224, 15494, 20069, 22936, 23876, 30988, 40138, 41783, 45872, 47752, 54229, 61976, 80276, 83566, 95504, 108458, 123952, 160552, 167132, 216916, 321104, 334264, 364109, 433832, 668528, 728218, 867664, 1456436, 2548763, 2912872, 5097526, 5825744, 10195052, 20390104, 40780208]

約数ペア:

[(1, 40780208), (2, 20390104), (4, 10195052), (7, 5825744), (8, 5097526), (14, 2912872), (16, 2548763), (28, 1456436), (47, 867664), (56, 728218), (61, 668528), (94, 433832), (112, 364109), (122, 334264), (127, 321104), (188, 216916), (244, 167132), (254, 160552), (329, 123952), (376, 108458), (427, 95504), (488, 83566), (508, 80276), (658, 61976), (752, 54229), (854, 47752), (889, 45872), (976, 41783), (1016, 40138), (1316, 30988), (1708, 23876), (1778, 22936), (2032, 20069), (2632, 15494), (2867, 14224), (3416, 11938), (3556, 11468), (5264, 7747), (5734, 7112), (5969, 6832)]