18935489272

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{65239}}^1$

素因数の和:65396

約数の個数: 64

約数和(自身を含む): 41711846400

約数和(自身を除く): 22776357128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 73, 142, 146, 284, 292, 497, 511, 568, 584, 994, 1022, 1988, 2044, 3976, 4088, 5183, 10366, 20732, 36281, 41464, 65239, 72562, 130478, 145124, 260956, 290248, 456673, 521912, 913346, 1826692, 3653384, 4631969, 4762447, 9263938, 9524894, 18527876, 19049788, 32423783, 33337129, 37055752, 38099576, 64847566, 66674258, 129695132, 133348516, 259390264, 266697032, 338133737, 676267474, 1352534948, 2366936159, 2705069896, 4733872318, 9467744636, 18935489272]

約数ペア:

[(1, 18935489272), (2, 9467744636), (4, 4733872318), (7, 2705069896), (8, 2366936159), (14, 1352534948), (28, 676267474), (56, 338133737), (71, 266697032), (73, 259390264), (142, 133348516), (146, 129695132), (284, 66674258), (292, 64847566), (497, 38099576), (511, 37055752), (568, 33337129), (584, 32423783), (994, 19049788), (1022, 18527876), (1988, 9524894), (2044, 9263938), (3976, 4762447), (4088, 4631969), (5183, 3653384), (10366, 1826692), (20732, 913346), (36281, 521912), (41464, 456673), (65239, 290248), (72562, 260956), (130478, 145124)]