19389760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 112

約数和(自身を含む): 51206400

約数和(自身を除く): 31816640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 79, 80, 104, 118, 130, 158, 160, 208, 236, 260, 295, 316, 320, 395, 416, 472, 520, 590, 632, 767, 790, 832, 944, 1027, 1040, 1180, 1264, 1534, 1580, 1888, 2054, 2080, 2360, 2528, 3068, 3160, 3776, 3835, 4108, 4160, 4661, 4720, 5056, 5135, 6136, 6320, 7670, 8216, 9322, 9440, 10270, 12272, 12640, 15340, 16432, 18644, 18880, 20540, 23305, 24544, 25280, 30680, 32864, 37288, 41080, 46610, 49088, 60593, 61360, 65728, 74576, 82160, 93220, 121186, 122720, 149152, 164320, 186440, 242372, 245440, 298304, 302965, 328640, 372880, 484744, 605930, 745760, 969488, 1211860, 1491520, 1938976, 2423720, 3877952, 4847440, 9694880, 19389760]

約数ペア:

[(1, 19389760), (2, 9694880), (4, 4847440), (5, 3877952), (8, 2423720), (10, 1938976), (13, 1491520), (16, 1211860), (20, 969488), (26, 745760), (32, 605930), (40, 484744), (52, 372880), (59, 328640), (64, 302965), (65, 298304), (79, 245440), (80, 242372), (104, 186440), (118, 164320), (130, 149152), (158, 122720), (160, 121186), (208, 93220), (236, 82160), (260, 74576), (295, 65728), (316, 61360), (320, 60593), (395, 49088), (416, 46610), (472, 41080), (520, 37288), (590, 32864), (632, 30680), (767, 25280), (790, 24544), (832, 23305), (944, 20540), (1027, 18880), (1040, 18644), (1180, 16432), (1264, 15340), (1534, 12640), (1580, 12272), (1888, 10270), (2054, 9440), (2080, 9322), (2360, 8216), (2528, 7670), (3068, 6320), (3160, 6136), (3776, 5135), (3835, 5056), (4108, 4720), (4160, 4661)]