199425640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 128

約数和(自身を含む): 509483520

約数和(自身を除く): 310057880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 41, 46, 68, 82, 85, 92, 115, 136, 164, 170, 184, 205, 230, 311, 328, 340, 391, 410, 460, 622, 680, 697, 782, 820, 920, 943, 1244, 1394, 1555, 1564, 1640, 1886, 1955, 2488, 2788, 3110, 3128, 3485, 3772, 3910, 4715, 5287, 5576, 6220, 6970, 7153, 7544, 7820, 9430, 10574, 12440, 12751, 13940, 14306, 15640, 16031, 18860, 21148, 25502, 26435, 27880, 28612, 32062, 35765, 37720, 42296, 51004, 52870, 57224, 63755, 64124, 71530, 80155, 102008, 105740, 121601, 127510, 128248, 143060, 160310, 211480, 216767, 243202, 255020, 286120, 293273, 320620, 433534, 486404, 510040, 586546, 608005, 641240, 867068, 972808, 1083835, 1173092, 1216010, 1466365, 1734136, 2167670, 2346184, 2432020, 2932730, 4335340, 4864040, 4985641, 5865460, 8670680, 9971282, 11730920, 19942564, 24928205, 39885128, 49856410, 99712820, 199425640]

約数ペア:

[(1, 199425640), (2, 99712820), (4, 49856410), (5, 39885128), (8, 24928205), (10, 19942564), (17, 11730920), (20, 9971282), (23, 8670680), (34, 5865460), (40, 4985641), (41, 4864040), (46, 4335340), (68, 2932730), (82, 2432020), (85, 2346184), (92, 2167670), (115, 1734136), (136, 1466365), (164, 1216010), (170, 1173092), (184, 1083835), (205, 972808), (230, 867068), (311, 641240), (328, 608005), (340, 586546), (391, 510040), (410, 486404), (460, 433534), (622, 320620), (680, 293273), (697, 286120), (782, 255020), (820, 243202), (920, 216767), (943, 211480), (1244, 160310), (1394, 143060), (1555, 128248), (1564, 127510), (1640, 121601), (1886, 105740), (1955, 102008), (2488, 80155), (2788, 71530), (3110, 64124), (3128, 63755), (3485, 57224), (3772, 52870), (3910, 51004), (4715, 42296), (5287, 37720), (5576, 35765), (6220, 32062), (6970, 28612), (7153, 27880), (7544, 26435), (7820, 25502), (9430, 21148), (10574, 18860), (12440, 16031), (12751, 15640), (13940, 14306)]