18849740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10357}}^1$

素因数の和:10386

約数の個数: 48

約数和(自身を含む): 48724032

約数和(自身を除く): 29874292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10357, 20714, 41428, 51785, 72499, 103570, 134641, 144998, 207140, 269282, 289996, 362495, 538564, 673205, 724990, 942487, 1346410, 1449980, 1884974, 2692820, 3769948, 4712435, 9424870, 18849740]

約数ペア:

[(1, 18849740), (2, 9424870), (4, 4712435), (5, 3769948), (7, 2692820), (10, 1884974), (13, 1449980), (14, 1346410), (20, 942487), (26, 724990), (28, 673205), (35, 538564), (52, 362495), (65, 289996), (70, 269282), (91, 207140), (130, 144998), (140, 134641), (182, 103570), (260, 72499), (364, 51785), (455, 41428), (910, 20714), (1820, 10357)]