12981200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 34872768

約数和(自身を除く): 21891568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 25, 34, 40, 46, 50, 68, 80, 83, 85, 92, 100, 115, 136, 166, 170, 184, 200, 230, 272, 332, 340, 368, 391, 400, 415, 425, 460, 575, 664, 680, 782, 830, 850, 920, 1150, 1328, 1360, 1411, 1564, 1660, 1700, 1840, 1909, 1955, 2075, 2300, 2822, 3128, 3320, 3400, 3818, 3910, 4150, 4600, 5644, 6256, 6640, 6800, 7055, 7636, 7820, 8300, 9200, 9545, 9775, 11288, 14110, 15272, 15640, 16600, 19090, 19550, 22576, 28220, 30544, 31280, 32453, 33200, 35275, 38180, 39100, 47725, 56440, 64906, 70550, 76360, 78200, 95450, 112880, 129812, 141100, 152720, 156400, 162265, 190900, 259624, 282200, 324530, 381800, 519248, 564400, 649060, 763600, 811325, 1298120, 1622650, 2596240, 3245300, 6490600, 12981200]

約数ペア:

[(1, 12981200), (2, 6490600), (4, 3245300), (5, 2596240), (8, 1622650), (10, 1298120), (16, 811325), (17, 763600), (20, 649060), (23, 564400), (25, 519248), (34, 381800), (40, 324530), (46, 282200), (50, 259624), (68, 190900), (80, 162265), (83, 156400), (85, 152720), (92, 141100), (100, 129812), (115, 112880), (136, 95450), (166, 78200), (170, 76360), (184, 70550), (200, 64906), (230, 56440), (272, 47725), (332, 39100), (340, 38180), (368, 35275), (391, 33200), (400, 32453), (415, 31280), (425, 30544), (460, 28220), (575, 22576), (664, 19550), (680, 19090), (782, 16600), (830, 15640), (850, 15272), (920, 14110), (1150, 11288), (1328, 9775), (1360, 9545), (1411, 9200), (1564, 8300), (1660, 7820), (1700, 7636), (1840, 7055), (1909, 6800), (1955, 6640), (2075, 6256), (2300, 5644), (2822, 4600), (3128, 4150), (3320, 3910), (3400, 3818)]