440843320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 1117800000

約数和(自身を除く): 676956680

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 149, 152, 170, 190, 229, 298, 323, 340, 380, 458, 596, 646, 680, 745, 760, 916, 1145, 1192, 1292, 1490, 1615, 1832, 2290, 2533, 2584, 2831, 2980, 3230, 3893, 4351, 4580, 5066, 5662, 5960, 6460, 7786, 8702, 9160, 10132, 11324, 12665, 12920, 14155, 15572, 17404, 19465, 20264, 21755, 22648, 25330, 28310, 31144, 34121, 34808, 38930, 43510, 48127, 50660, 56620, 68242, 73967, 77860, 87020, 96254, 101320, 113240, 136484, 147934, 155720, 170605, 174040, 192508, 240635, 272968, 295868, 341210, 369835, 385016, 481270, 580057, 591736, 648299, 682420, 739670, 962540, 1160114, 1296598, 1364840, 1479340, 1925080, 2320228, 2593196, 2900285, 2958680, 3241495, 4640456, 5186392, 5800570, 6482990, 11021083, 11601140, 12965980, 22042166, 23202280, 25931960, 44084332, 55105415, 88168664, 110210830, 220421660, 440843320]

約数ペア:

[(1, 440843320), (2, 220421660), (4, 110210830), (5, 88168664), (8, 55105415), (10, 44084332), (17, 25931960), (19, 23202280), (20, 22042166), (34, 12965980), (38, 11601140), (40, 11021083), (68, 6482990), (76, 5800570), (85, 5186392), (95, 4640456), (136, 3241495), (149, 2958680), (152, 2900285), (170, 2593196), (190, 2320228), (229, 1925080), (298, 1479340), (323, 1364840), (340, 1296598), (380, 1160114), (458, 962540), (596, 739670), (646, 682420), (680, 648299), (745, 591736), (760, 580057), (916, 481270), (1145, 385016), (1192, 369835), (1292, 341210), (1490, 295868), (1615, 272968), (1832, 240635), (2290, 192508), (2533, 174040), (2584, 170605), (2831, 155720), (2980, 147934), (3230, 136484), (3893, 113240), (4351, 101320), (4580, 96254), (5066, 87020), (5662, 77860), (5960, 73967), (6460, 68242), (7786, 56620), (8702, 50660), (9160, 48127), (10132, 43510), (11324, 38930), (12665, 34808), (12920, 34121), (14155, 31144), (15572, 28310), (17404, 25330), (19465, 22648), (20264, 21755)]