193157720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 518538240

約数和(自身を除く): 325380520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 61, 70, 86, 122, 140, 172, 215, 244, 263, 280, 301, 305, 344, 427, 430, 488, 526, 602, 610, 854, 860, 1052, 1204, 1220, 1315, 1505, 1708, 1720, 1841, 2104, 2135, 2408, 2440, 2623, 2630, 3010, 3416, 3682, 4270, 5246, 5260, 6020, 7364, 8540, 9205, 10492, 10520, 11309, 12040, 13115, 14728, 16043, 17080, 18361, 18410, 20984, 22618, 26230, 32086, 36722, 36820, 45236, 52460, 56545, 64172, 73444, 73640, 79163, 80215, 90472, 91805, 104920, 112301, 113090, 128344, 146888, 158326, 160430, 183610, 224602, 226180, 316652, 320860, 367220, 395815, 449204, 452360, 561505, 633304, 641720, 689849, 734440, 791630, 898408, 1123010, 1379698, 1583260, 2246020, 2759396, 3166520, 3449245, 4492040, 4828943, 5518792, 6898490, 9657886, 13796980, 19315772, 24144715, 27593960, 38631544, 48289430, 96578860, 193157720]

約数ペア:

[(1, 193157720), (2, 96578860), (4, 48289430), (5, 38631544), (7, 27593960), (8, 24144715), (10, 19315772), (14, 13796980), (20, 9657886), (28, 6898490), (35, 5518792), (40, 4828943), (43, 4492040), (56, 3449245), (61, 3166520), (70, 2759396), (86, 2246020), (122, 1583260), (140, 1379698), (172, 1123010), (215, 898408), (244, 791630), (263, 734440), (280, 689849), (301, 641720), (305, 633304), (344, 561505), (427, 452360), (430, 449204), (488, 395815), (526, 367220), (602, 320860), (610, 316652), (854, 226180), (860, 224602), (1052, 183610), (1204, 160430), (1220, 158326), (1315, 146888), (1505, 128344), (1708, 113090), (1720, 112301), (1841, 104920), (2104, 91805), (2135, 90472), (2408, 80215), (2440, 79163), (2623, 73640), (2630, 73444), (3010, 64172), (3416, 56545), (3682, 52460), (4270, 45236), (5246, 36820), (5260, 36722), (6020, 32086), (7364, 26230), (8540, 22618), (9205, 20984), (10492, 18410), (10520, 18361), (11309, 17080), (12040, 16043), (13115, 14728)]