199888740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:522

約数の個数: 144

約数和(自身を含む): 643581120

約数和(自身を除く): 443692380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 211, 228, 277, 285, 342, 380, 422, 554, 570, 633, 684, 831, 844, 855, 1055, 1108, 1140, 1266, 1385, 1662, 1710, 1899, 2110, 2493, 2532, 2770, 3165, 3324, 3420, 3798, 4009, 4155, 4220, 4986, 5263, 5540, 6330, 7596, 8018, 8310, 9495, 9972, 10526, 12027, 12465, 12660, 15789, 16036, 16620, 18990, 20045, 21052, 24054, 24930, 26315, 31578, 36081, 37980, 40090, 47367, 48108, 49860, 52630, 58447, 60135, 63156, 72162, 78945, 80180, 94734, 105260, 116894, 120270, 144324, 157890, 175341, 180405, 189468, 233788, 236835, 240540, 292235, 315780, 350682, 360810, 473670, 526023, 584470, 701364, 721620, 876705, 947340, 1052046, 1110493, 1168940, 1753410, 2104092, 2220986, 2630115, 3331479, 3506820, 4441972, 5260230, 5552465, 6662958, 9994437, 10520460, 11104930, 13325916, 16657395, 19988874, 22209860, 33314790, 39977748, 49972185, 66629580, 99944370, 199888740]

約数ペア:

[(1, 199888740), (2, 99944370), (3, 66629580), (4, 49972185), (5, 39977748), (6, 33314790), (9, 22209860), (10, 19988874), (12, 16657395), (15, 13325916), (18, 11104930), (19, 10520460), (20, 9994437), (30, 6662958), (36, 5552465), (38, 5260230), (45, 4441972), (57, 3506820), (60, 3331479), (76, 2630115), (90, 2220986), (95, 2104092), (114, 1753410), (171, 1168940), (180, 1110493), (190, 1052046), (211, 947340), (228, 876705), (277, 721620), (285, 701364), (342, 584470), (380, 526023), (422, 473670), (554, 360810), (570, 350682), (633, 315780), (684, 292235), (831, 240540), (844, 236835), (855, 233788), (1055, 189468), (1108, 180405), (1140, 175341), (1266, 157890), (1385, 144324), (1662, 120270), (1710, 116894), (1899, 105260), (2110, 94734), (2493, 80180), (2532, 78945), (2770, 72162), (3165, 63156), (3324, 60135), (3420, 58447), (3798, 52630), (4009, 49860), (4155, 48108), (4220, 47367), (4986, 40090), (5263, 37980), (5540, 36081), (6330, 31578), (7596, 26315), (8018, 24930), (8310, 24054), (9495, 21052), (9972, 20045), (10526, 18990), (12027, 16620), (12465, 16036), (12660, 15789)]