20490450008

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{44357}}^1$

素因数の和:44556

約数の個数: 64

約数和(自身を含む): 44904490560

約数和(自身を除く): 24414040552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 113, 146, 226, 292, 452, 511, 584, 791, 904, 1022, 1582, 2044, 3164, 4088, 6328, 8249, 16498, 32996, 44357, 57743, 65992, 88714, 115486, 177428, 230972, 310499, 354856, 461944, 620998, 1241996, 2483992, 3238061, 5012341, 6476122, 10024682, 12952244, 20049364, 22666427, 25904488, 35086387, 40098728, 45332854, 70172774, 90665708, 140345548, 181331416, 280691096, 365900893, 731801786, 1463603572, 2561306251, 2927207144, 5122612502, 10245225004, 20490450008]

約数ペア:

[(1, 20490450008), (2, 10245225004), (4, 5122612502), (7, 2927207144), (8, 2561306251), (14, 1463603572), (28, 731801786), (56, 365900893), (73, 280691096), (113, 181331416), (146, 140345548), (226, 90665708), (292, 70172774), (452, 45332854), (511, 40098728), (584, 35086387), (791, 25904488), (904, 22666427), (1022, 20049364), (1582, 12952244), (2044, 10024682), (3164, 6476122), (4088, 5012341), (6328, 3238061), (8249, 2483992), (16498, 1241996), (32996, 620998), (44357, 461944), (57743, 354856), (65992, 310499), (88714, 230972), (115486, 177428)]