20031440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 160

約数和(自身を含む): 58496256

約数和(自身を除く): 38464816

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, 103, 104, 110, 130, 136, 143, 170, 176, 187, 206, 208, 220, 221, 260, 272, 286, 340, 374, 412, 440, 442, 515, 520, 572, 680, 715, 748, 824, 880, 884, 935, 1030, 1040, 1105, 1133, 1144, 1339, 1360, 1430, 1496, 1648, 1751, 1768, 1870, 2060, 2210, 2266, 2288, 2431, 2678, 2860, 2992, 3502, 3536, 3740, 4120, 4420, 4532, 4862, 5356, 5665, 5720, 6695, 7004, 7480, 8240, 8755, 8840, 9064, 9724, 10712, 11330, 11440, 12155, 13390, 14008, 14729, 14960, 17510, 17680, 18128, 19261, 19448, 21424, 22660, 22763, 24310, 26780, 28016, 29458, 35020, 38522, 38896, 45320, 45526, 48620, 53560, 58916, 70040, 73645, 77044, 90640, 91052, 96305, 97240, 107120, 113815, 117832, 140080, 147290, 154088, 182104, 192610, 194480, 227630, 235664, 250393, 294580, 308176, 364208, 385220, 455260, 500786, 589160, 770440, 910520, 1001572, 1178320, 1251965, 1540880, 1821040, 2003144, 2503930, 4006288, 5007860, 10015720, 20031440]

約数ペア:

[(1, 20031440), (2, 10015720), (4, 5007860), (5, 4006288), (8, 2503930), (10, 2003144), (11, 1821040), (13, 1540880), (16, 1251965), (17, 1178320), (20, 1001572), (22, 910520), (26, 770440), (34, 589160), (40, 500786), (44, 455260), (52, 385220), (55, 364208), (65, 308176), (68, 294580), (80, 250393), (85, 235664), (88, 227630), (103, 194480), (104, 192610), (110, 182104), (130, 154088), (136, 147290), (143, 140080), (170, 117832), (176, 113815), (187, 107120), (206, 97240), (208, 96305), (220, 91052), (221, 90640), (260, 77044), (272, 73645), (286, 70040), (340, 58916), (374, 53560), (412, 48620), (440, 45526), (442, 45320), (515, 38896), (520, 38522), (572, 35020), (680, 29458), (715, 28016), (748, 26780), (824, 24310), (880, 22763), (884, 22660), (935, 21424), (1030, 19448), (1040, 19261), (1105, 18128), (1133, 17680), (1144, 17510), (1339, 14960), (1360, 14729), (1430, 14008), (1496, 13390), (1648, 12155), (1751, 11440), (1768, 11330), (1870, 10712), (2060, 9724), (2210, 9064), (2266, 8840), (2288, 8755), (2431, 8240), (2678, 7480), (2860, 7004), (2992, 6695), (3502, 5720), (3536, 5665), (3740, 5356), (4120, 4862), (4420, 4532)]