21197280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 53314080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 43, 48, 52, 60, 65, 78, 79, 80, 86, 96, 104, 120, 129, 130, 156, 158, 160, 172, 195, 208, 215, 237, 240, 258, 260, 312, 316, 344, 390, 395, 416, 430, 474, 480, 516, 520, 559, 624, 632, 645, 688, 780, 790, 860, 948, 1027, 1032, 1040, 1118, 1185, 1248, 1264, 1290, 1376, 1560, 1580, 1677, 1720, 1896, 2054, 2064, 2080, 2236, 2370, 2528, 2580, 2795, 3081, 3120, 3160, 3354, 3397, 3440, 3792, 4108, 4128, 4472, 4740, 5135, 5160, 5590, 6162, 6240, 6320, 6708, 6794, 6880, 7584, 8216, 8385, 8944, 9480, 10191, 10270, 10320, 11180, 12324, 12640, 13416, 13588, 15405, 16432, 16770, 16985, 17888, 18960, 20382, 20540, 20640, 22360, 24648, 26832, 27176, 30810, 32864, 33540, 33970, 37920, 40764, 41080, 44161, 44720, 49296, 50955, 53664, 54352, 61620, 67080, 67940, 81528, 82160, 88322, 89440, 98592, 101910, 108704, 123240, 132483, 134160, 135880, 163056, 164320, 176644, 203820, 220805, 246480, 264966, 268320, 271760, 326112, 353288, 407640, 441610, 492960, 529932, 543520, 662415, 706576, 815280, 883220, 1059864, 1324830, 1413152, 1630560, 1766440, 2119728, 2649660, 3532880, 4239456, 5299320, 7065760, 10598640, 21197280]

約数ペア:

[(1, 21197280), (2, 10598640), (3, 7065760), (4, 5299320), (5, 4239456), (6, 3532880), (8, 2649660), (10, 2119728), (12, 1766440), (13, 1630560), (15, 1413152), (16, 1324830), (20, 1059864), (24, 883220), (26, 815280), (30, 706576), (32, 662415), (39, 543520), (40, 529932), (43, 492960), (48, 441610), (52, 407640), (60, 353288), (65, 326112), (78, 271760), (79, 268320), (80, 264966), (86, 246480), (96, 220805), (104, 203820), (120, 176644), (129, 164320), (130, 163056), (156, 135880), (158, 134160), (160, 132483), (172, 123240), (195, 108704), (208, 101910), (215, 98592), (237, 89440), (240, 88322), (258, 82160), (260, 81528), (312, 67940), (316, 67080), (344, 61620), (390, 54352), (395, 53664), (416, 50955), (430, 49296), (474, 44720), (480, 44161), (516, 41080), (520, 40764), (559, 37920), (624, 33970), (632, 33540), (645, 32864), (688, 30810), (780, 27176), (790, 26832), (860, 24648), (948, 22360), (1027, 20640), (1032, 20540), (1040, 20382), (1118, 18960), (1185, 17888), (1248, 16985), (1264, 16770), (1290, 16432), (1376, 15405), (1560, 13588), (1580, 13416), (1677, 12640), (1720, 12324), (1896, 11180), (2054, 10320), (2064, 10270), (2080, 10191), (2236, 9480), (2370, 8944), (2528, 8385), (2580, 8216), (2795, 7584), (3081, 6880), (3120, 6794), (3160, 6708), (3354, 6320), (3397, 6240), (3440, 6162), (3792, 5590), (4108, 5160), (4128, 5135), (4472, 4740)]