91891980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 297504480

約数和(自身を除く): 205612500

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, 97, 114, 171, 180, 190, 194, 228, 277, 285, 291, 342, 380, 388, 485, 554, 570, 582, 684, 831, 855, 873, 970, 1108, 1140, 1164, 1385, 1455, 1662, 1710, 1746, 1843, 1940, 2493, 2770, 2910, 3324, 3420, 3492, 3686, 4155, 4365, 4986, 5263, 5529, 5540, 5820, 7372, 8310, 8730, 9215, 9972, 10526, 11058, 12465, 15789, 16587, 16620, 17460, 18430, 21052, 22116, 24930, 26315, 26869, 27645, 31578, 33174, 36860, 47367, 49860, 52630, 53738, 55290, 63156, 66348, 78945, 80607, 82935, 94734, 105260, 107476, 110580, 134345, 157890, 161214, 165870, 189468, 236835, 241821, 268690, 315780, 322428, 331740, 403035, 473670, 483642, 510511, 537380, 806070, 947340, 967284, 1021022, 1209105, 1531533, 1612140, 2042044, 2418210, 2552555, 3063066, 4594599, 4836420, 5105110, 6126132, 7657665, 9189198, 10210220, 15315330, 18378396, 22972995, 30630660, 45945990, 91891980]

約数ペア:

[(1, 91891980), (2, 45945990), (3, 30630660), (4, 22972995), (5, 18378396), (6, 15315330), (9, 10210220), (10, 9189198), (12, 7657665), (15, 6126132), (18, 5105110), (19, 4836420), (20, 4594599), (30, 3063066), (36, 2552555), (38, 2418210), (45, 2042044), (57, 1612140), (60, 1531533), (76, 1209105), (90, 1021022), (95, 967284), (97, 947340), (114, 806070), (171, 537380), (180, 510511), (190, 483642), (194, 473670), (228, 403035), (277, 331740), (285, 322428), (291, 315780), (342, 268690), (380, 241821), (388, 236835), (485, 189468), (554, 165870), (570, 161214), (582, 157890), (684, 134345), (831, 110580), (855, 107476), (873, 105260), (970, 94734), (1108, 82935), (1140, 80607), (1164, 78945), (1385, 66348), (1455, 63156), (1662, 55290), (1710, 53738), (1746, 52630), (1843, 49860), (1940, 47367), (2493, 36860), (2770, 33174), (2910, 31578), (3324, 27645), (3420, 26869), (3492, 26315), (3686, 24930), (4155, 22116), (4365, 21052), (4986, 18430), (5263, 17460), (5529, 16620), (5540, 16587), (5820, 15789), (7372, 12465), (8310, 11058), (8730, 10526), (9215, 9972)]