19387680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1$

素因数の和:283

約数の個数: 144

約数和(自身を含む): 66407040

約数和(自身を除く): 47019360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 239, 240, 260, 312, 338, 390, 416, 478, 480, 507, 520, 624, 676, 717, 780, 845, 956, 1014, 1040, 1195, 1248, 1352, 1434, 1560, 1690, 1912, 2028, 2080, 2390, 2535, 2704, 2868, 3107, 3120, 3380, 3585, 3824, 4056, 4780, 5070, 5408, 5736, 6214, 6240, 6760, 7170, 7648, 8112, 9321, 9560, 10140, 11472, 12428, 13520, 14340, 15535, 16224, 18642, 19120, 20280, 22944, 24856, 27040, 28680, 31070, 37284, 38240, 40391, 40560, 46605, 49712, 57360, 62140, 74568, 80782, 81120, 93210, 99424, 114720, 121173, 124280, 149136, 161564, 186420, 201955, 242346, 248560, 298272, 323128, 372840, 403910, 484692, 497120, 605865, 646256, 745680, 807820, 969384, 1211730, 1292512, 1491360, 1615640, 1938768, 2423460, 3231280, 3877536, 4846920, 6462560, 9693840, 19387680]

約数ペア:

[(1, 19387680), (2, 9693840), (3, 6462560), (4, 4846920), (5, 3877536), (6, 3231280), (8, 2423460), (10, 1938768), (12, 1615640), (13, 1491360), (15, 1292512), (16, 1211730), (20, 969384), (24, 807820), (26, 745680), (30, 646256), (32, 605865), (39, 497120), (40, 484692), (48, 403910), (52, 372840), (60, 323128), (65, 298272), (78, 248560), (80, 242346), (96, 201955), (104, 186420), (120, 161564), (130, 149136), (156, 124280), (160, 121173), (169, 114720), (195, 99424), (208, 93210), (239, 81120), (240, 80782), (260, 74568), (312, 62140), (338, 57360), (390, 49712), (416, 46605), (478, 40560), (480, 40391), (507, 38240), (520, 37284), (624, 31070), (676, 28680), (717, 27040), (780, 24856), (845, 22944), (956, 20280), (1014, 19120), (1040, 18642), (1195, 16224), (1248, 15535), (1352, 14340), (1434, 13520), (1560, 12428), (1690, 11472), (1912, 10140), (2028, 9560), (2080, 9321), (2390, 8112), (2535, 7648), (2704, 7170), (2868, 6760), (3107, 6240), (3120, 6214), (3380, 5736), (3585, 5408), (3824, 5070), (4056, 4780)]