19196840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 51408000

約数和(自身を除く): 32211160

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 29, 38, 40, 52, 58, 65, 67, 76, 95, 104, 116, 130, 134, 145, 152, 190, 232, 247, 260, 268, 290, 335, 377, 380, 494, 520, 536, 551, 580, 670, 754, 760, 871, 988, 1102, 1160, 1235, 1273, 1340, 1508, 1742, 1885, 1943, 1976, 2204, 2470, 2546, 2680, 2755, 3016, 3484, 3770, 3886, 4355, 4408, 4940, 5092, 5510, 6365, 6968, 7163, 7540, 7772, 8710, 9715, 9880, 10184, 11020, 12730, 14326, 15080, 15544, 16549, 17420, 19430, 22040, 25259, 25460, 28652, 33098, 34840, 35815, 36917, 38860, 50518, 50920, 57304, 66196, 71630, 73834, 77720, 82745, 101036, 126295, 132392, 143260, 147668, 165490, 184585, 202072, 252590, 286520, 295336, 330980, 369170, 479921, 505180, 661960, 738340, 959842, 1010360, 1476680, 1919684, 2399605, 3839368, 4799210, 9598420, 19196840]

約数ペア:

[(1, 19196840), (2, 9598420), (4, 4799210), (5, 3839368), (8, 2399605), (10, 1919684), (13, 1476680), (19, 1010360), (20, 959842), (26, 738340), (29, 661960), (38, 505180), (40, 479921), (52, 369170), (58, 330980), (65, 295336), (67, 286520), (76, 252590), (95, 202072), (104, 184585), (116, 165490), (130, 147668), (134, 143260), (145, 132392), (152, 126295), (190, 101036), (232, 82745), (247, 77720), (260, 73834), (268, 71630), (290, 66196), (335, 57304), (377, 50920), (380, 50518), (494, 38860), (520, 36917), (536, 35815), (551, 34840), (580, 33098), (670, 28652), (754, 25460), (760, 25259), (871, 22040), (988, 19430), (1102, 17420), (1160, 16549), (1235, 15544), (1273, 15080), (1340, 14326), (1508, 12730), (1742, 11020), (1885, 10184), (1943, 9880), (1976, 9715), (2204, 8710), (2470, 7772), (2546, 7540), (2680, 7163), (2755, 6968), (3016, 6365), (3484, 5510), (3770, 5092), (3886, 4940), (4355, 4408)]