19642480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 57371328

約数和(自身を除く): 37728848

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 101, 104, 110, 130, 136, 143, 170, 176, 187, 202, 208, 220, 221, 260, 272, 286, 340, 374, 404, 440, 442, 505, 520, 572, 680, 715, 748, 808, 880, 884, 935, 1010, 1040, 1105, 1111, 1144, 1313, 1360, 1430, 1496, 1616, 1717, 1768, 1870, 2020, 2210, 2222, 2288, 2431, 2626, 2860, 2992, 3434, 3536, 3740, 4040, 4420, 4444, 4862, 5252, 5555, 5720, 6565, 6868, 7480, 8080, 8585, 8840, 8888, 9724, 10504, 11110, 11440, 12155, 13130, 13736, 14443, 14960, 17170, 17680, 17776, 18887, 19448, 21008, 22220, 22321, 24310, 26260, 27472, 28886, 34340, 37774, 38896, 44440, 44642, 48620, 52520, 57772, 68680, 72215, 75548, 88880, 89284, 94435, 97240, 105040, 111605, 115544, 137360, 144430, 151096, 178568, 188870, 194480, 223210, 231088, 245531, 288860, 302192, 357136, 377740, 446420, 491062, 577720, 755480, 892840, 982124, 1155440, 1227655, 1510960, 1785680, 1964248, 2455310, 3928496, 4910620, 9821240, 19642480]

約数ペア:

[(1, 19642480), (2, 9821240), (4, 4910620), (5, 3928496), (8, 2455310), (10, 1964248), (11, 1785680), (13, 1510960), (16, 1227655), (17, 1155440), (20, 982124), (22, 892840), (26, 755480), (34, 577720), (40, 491062), (44, 446420), (52, 377740), (55, 357136), (65, 302192), (68, 288860), (80, 245531), (85, 231088), (88, 223210), (101, 194480), (104, 188870), (110, 178568), (130, 151096), (136, 144430), (143, 137360), (170, 115544), (176, 111605), (187, 105040), (202, 97240), (208, 94435), (220, 89284), (221, 88880), (260, 75548), (272, 72215), (286, 68680), (340, 57772), (374, 52520), (404, 48620), (440, 44642), (442, 44440), (505, 38896), (520, 37774), (572, 34340), (680, 28886), (715, 27472), (748, 26260), (808, 24310), (880, 22321), (884, 22220), (935, 21008), (1010, 19448), (1040, 18887), (1105, 17776), (1111, 17680), (1144, 17170), (1313, 14960), (1360, 14443), (1430, 13736), (1496, 13130), (1616, 12155), (1717, 11440), (1768, 11110), (1870, 10504), (2020, 9724), (2210, 8888), (2222, 8840), (2288, 8585), (2431, 8080), (2626, 7480), (2860, 6868), (2992, 6565), (3434, 5720), (3536, 5555), (3740, 5252), (4040, 4862), (4420, 4444)]