80491663600

素因数分解:

$2^4\times 5^2\times {\mathrm{421}}^1\times {\mathrm{431}}^1\times {\mathrm{1109}}^1$

素因数の和:1979

約数の個数: 120

約数和(自身を含む): 194465499840

約数和(自身を除く): 113973836240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 421, 431, 842, 862, 1109, 1684, 1724, 2105, 2155, 2218, 3368, 3448, 4210, 4310, 4436, 5545, 6736, 6896, 8420, 8620, 8872, 10525, 10775, 11090, 16840, 17240, 17744, 21050, 21550, 22180, 27725, 33680, 34480, 42100, 43100, 44360, 55450, 84200, 86200, 88720, 110900, 168400, 172400, 181451, 221800, 362902, 443600, 466889, 477979, 725804, 907255, 933778, 955958, 1451608, 1814510, 1867556, 1911916, 2334445, 2389895, 2903216, 3629020, 3735112, 3823832, 4536275, 4668890, 4779790, 7258040, 7470224, 7647664, 9072550, 9337780, 9559580, 11672225, 11949475, 14516080, 18145100, 18675560, 19119160, 23344450, 23898950, 36290200, 37351120, 38238320, 46688900, 47797900, 72580400, 93377800, 95595800, 186755600, 191191600, 201229159, 402458318, 804916636, 1006145795, 1609833272, 2012291590, 3219666544, 4024583180, 5030728975, 8049166360, 10061457950, 16098332720, 20122915900, 40245831800, 80491663600]

約数ペア:

[(1, 80491663600), (2, 40245831800), (4, 20122915900), (5, 16098332720), (8, 10061457950), (10, 8049166360), (16, 5030728975), (20, 4024583180), (25, 3219666544), (40, 2012291590), (50, 1609833272), (80, 1006145795), (100, 804916636), (200, 402458318), (400, 201229159), (421, 191191600), (431, 186755600), (842, 95595800), (862, 93377800), (1109, 72580400), (1684, 47797900), (1724, 46688900), (2105, 38238320), (2155, 37351120), (2218, 36290200), (3368, 23898950), (3448, 23344450), (4210, 19119160), (4310, 18675560), (4436, 18145100), (5545, 14516080), (6736, 11949475), (6896, 11672225), (8420, 9559580), (8620, 9337780), (8872, 9072550), (10525, 7647664), (10775, 7470224), (11090, 7258040), (16840, 4779790), (17240, 4668890), (17744, 4536275), (21050, 3823832), (21550, 3735112), (22180, 3629020), (27725, 2903216), (33680, 2389895), (34480, 2334445), (42100, 1911916), (43100, 1867556), (44360, 1814510), (55450, 1451608), (84200, 955958), (86200, 933778), (88720, 907255), (110900, 725804), (168400, 477979), (172400, 466889), (181451, 443600), (221800, 362902)]