128745760

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 192

約数和(自身を含む): 379499904

約数和(自身を除く): 250754144

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 32, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 104, 110, 130, 136, 143, 160, 170, 176, 187, 208, 220, 221, 260, 272, 286, 331, 340, 352, 374, 416, 440, 442, 520, 544, 572, 662, 680, 715, 748, 880, 884, 935, 1040, 1105, 1144, 1324, 1360, 1430, 1496, 1655, 1760, 1768, 1870, 2080, 2210, 2288, 2431, 2648, 2720, 2860, 2992, 3310, 3536, 3641, 3740, 4303, 4420, 4576, 4862, 5296, 5627, 5720, 5984, 6620, 7072, 7282, 7480, 8606, 8840, 9724, 10592, 11254, 11440, 12155, 13240, 14564, 14960, 17212, 17680, 18205, 19448, 21515, 22508, 22880, 24310, 26480, 28135, 29128, 29920, 34424, 35360, 36410, 38896, 43030, 45016, 47333, 48620, 52960, 56270, 58256, 61897, 68848, 72820, 73151, 77792, 86060, 90032, 94666, 97240, 112540, 116512, 123794, 137696, 145640, 146302, 172120, 180064, 189332, 194480, 225080, 236665, 247588, 291280, 292604, 309485, 344240, 365755, 378664, 388960, 450160, 473330, 495176, 582560, 585208, 618970, 688480, 731510, 757328, 804661, 900320, 946660, 990352, 1170416, 1237940, 1463020, 1514656, 1609322, 1893320, 1980704, 2340832, 2475880, 2926040, 3218644, 3786640, 4023305, 4951760, 5852080, 6437288, 7573280, 8046610, 9903520, 11704160, 12874576, 16093220, 25749152, 32186440, 64372880, 128745760]

約数ペア:

[(1, 128745760), (2, 64372880), (4, 32186440), (5, 25749152), (8, 16093220), (10, 12874576), (11, 11704160), (13, 9903520), (16, 8046610), (17, 7573280), (20, 6437288), (22, 5852080), (26, 4951760), (32, 4023305), (34, 3786640), (40, 3218644), (44, 2926040), (52, 2475880), (55, 2340832), (65, 1980704), (68, 1893320), (80, 1609322), (85, 1514656), (88, 1463020), (104, 1237940), (110, 1170416), (130, 990352), (136, 946660), (143, 900320), (160, 804661), (170, 757328), (176, 731510), (187, 688480), (208, 618970), (220, 585208), (221, 582560), (260, 495176), (272, 473330), (286, 450160), (331, 388960), (340, 378664), (352, 365755), (374, 344240), (416, 309485), (440, 292604), (442, 291280), (520, 247588), (544, 236665), (572, 225080), (662, 194480), (680, 189332), (715, 180064), (748, 172120), (880, 146302), (884, 145640), (935, 137696), (1040, 123794), (1105, 116512), (1144, 112540), (1324, 97240), (1360, 94666), (1430, 90032), (1496, 86060), (1655, 77792), (1760, 73151), (1768, 72820), (1870, 68848), (2080, 61897), (2210, 58256), (2288, 56270), (2431, 52960), (2648, 48620), (2720, 47333), (2860, 45016), (2992, 43030), (3310, 38896), (3536, 36410), (3641, 35360), (3740, 34424), (4303, 29920), (4420, 29128), (4576, 28135), (4862, 26480), (5296, 24310), (5627, 22880), (5720, 22508), (5984, 21515), (6620, 19448), (7072, 18205), (7282, 17680), (7480, 17212), (8606, 14960), (8840, 14564), (9724, 13240), (10592, 12155), (11254, 11440)]