18871213256

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{3137}}^1$

素因数の和:3327

約数の個数: 128

約数和(自身を含む): 43921958400

約数和(自身を除く): 25050745144

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 71, 89, 119, 136, 142, 178, 238, 284, 356, 476, 497, 568, 623, 712, 952, 994, 1207, 1246, 1513, 1988, 2414, 2492, 3026, 3137, 3976, 4828, 4984, 6052, 6274, 6319, 8449, 9656, 10591, 12104, 12548, 12638, 16898, 21182, 21959, 25096, 25276, 33796, 42364, 43918, 44233, 50552, 53329, 67592, 84728, 87836, 88466, 106658, 107423, 175672, 176932, 213316, 214846, 222727, 279193, 353864, 373303, 426632, 429692, 445454, 558386, 746606, 751961, 859384, 890908, 1116772, 1493212, 1503922, 1559089, 1781816, 1954351, 2233544, 2986424, 3007844, 3118178, 3786359, 3908702, 4746281, 6015688, 6236356, 7572718, 7817404, 9492562, 12472712, 15145436, 15634808, 18985124, 19822703, 26504513, 30290872, 33223967, 37970248, 39645406, 53009026, 66447934, 79290812, 106018052, 132895868, 138758921, 158581624, 212036104, 265791736, 277517842, 336985951, 555035684, 673971902, 1110071368, 1347943804, 2358901657, 2695887608, 4717803314, 9435606628, 18871213256]

約数ペア:

[(1, 18871213256), (2, 9435606628), (4, 4717803314), (7, 2695887608), (8, 2358901657), (14, 1347943804), (17, 1110071368), (28, 673971902), (34, 555035684), (56, 336985951), (68, 277517842), (71, 265791736), (89, 212036104), (119, 158581624), (136, 138758921), (142, 132895868), (178, 106018052), (238, 79290812), (284, 66447934), (356, 53009026), (476, 39645406), (497, 37970248), (568, 33223967), (623, 30290872), (712, 26504513), (952, 19822703), (994, 18985124), (1207, 15634808), (1246, 15145436), (1513, 12472712), (1988, 9492562), (2414, 7817404), (2492, 7572718), (3026, 6236356), (3137, 6015688), (3976, 4746281), (4828, 3908702), (4984, 3786359), (6052, 3118178), (6274, 3007844), (6319, 2986424), (8449, 2233544), (9656, 1954351), (10591, 1781816), (12104, 1559089), (12548, 1503922), (12638, 1493212), (16898, 1116772), (21182, 890908), (21959, 859384), (25096, 751961), (25276, 746606), (33796, 558386), (42364, 445454), (43918, 429692), (44233, 426632), (50552, 373303), (53329, 353864), (67592, 279193), (84728, 222727), (87836, 214846), (88466, 213316), (106658, 176932), (107423, 175672)]