19507840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 54198720

約数和(自身を除く): 34690880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 163, 170, 176, 187, 220, 272, 320, 326, 340, 352, 374, 440, 544, 640, 652, 680, 704, 748, 815, 880, 935, 1088, 1304, 1360, 1408, 1496, 1630, 1760, 1793, 1870, 2176, 2608, 2720, 2771, 2992, 3260, 3520, 3586, 3740, 5216, 5440, 5542, 5984, 6520, 7040, 7172, 7480, 8965, 10432, 10880, 11084, 11968, 13040, 13855, 14344, 14960, 17930, 20864, 22168, 23936, 26080, 27710, 28688, 29920, 30481, 35860, 44336, 52160, 55420, 57376, 59840, 60962, 71720, 88672, 104320, 110840, 114752, 119680, 121924, 143440, 152405, 177344, 221680, 229504, 243848, 286880, 304810, 354688, 443360, 487696, 573760, 609620, 886720, 975392, 1147520, 1219240, 1773440, 1950784, 2438480, 3901568, 4876960, 9753920, 19507840]

約数ペア:

[(1, 19507840), (2, 9753920), (4, 4876960), (5, 3901568), (8, 2438480), (10, 1950784), (11, 1773440), (16, 1219240), (17, 1147520), (20, 975392), (22, 886720), (32, 609620), (34, 573760), (40, 487696), (44, 443360), (55, 354688), (64, 304810), (68, 286880), (80, 243848), (85, 229504), (88, 221680), (110, 177344), (128, 152405), (136, 143440), (160, 121924), (163, 119680), (170, 114752), (176, 110840), (187, 104320), (220, 88672), (272, 71720), (320, 60962), (326, 59840), (340, 57376), (352, 55420), (374, 52160), (440, 44336), (544, 35860), (640, 30481), (652, 29920), (680, 28688), (704, 27710), (748, 26080), (815, 23936), (880, 22168), (935, 20864), (1088, 17930), (1304, 14960), (1360, 14344), (1408, 13855), (1496, 13040), (1630, 11968), (1760, 11084), (1793, 10880), (1870, 10432), (2176, 8965), (2608, 7480), (2720, 7172), (2771, 7040), (2992, 6520), (3260, 5984), (3520, 5542), (3586, 5440), (3740, 5216)]