20158320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 240

約数和(自身を含む): 78423552

約数和(自身を除く): 58265232

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 71, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 142, 156, 168, 169, 182, 195, 208, 210, 213, 240, 260, 273, 280, 284, 312, 336, 338, 355, 364, 390, 420, 426, 455, 497, 507, 520, 546, 560, 568, 624, 676, 710, 728, 780, 840, 845, 852, 910, 923, 994, 1014, 1040, 1065, 1092, 1136, 1183, 1352, 1365, 1420, 1456, 1491, 1560, 1680, 1690, 1704, 1820, 1846, 1988, 2028, 2130, 2184, 2366, 2485, 2535, 2704, 2730, 2769, 2840, 2982, 3120, 3380, 3408, 3549, 3640, 3692, 3976, 4056, 4260, 4368, 4615, 4732, 4970, 5070, 5460, 5538, 5680, 5915, 5964, 6461, 6760, 7098, 7280, 7384, 7455, 7952, 8112, 8520, 9230, 9464, 9940, 10140, 10920, 11076, 11830, 11928, 11999, 12922, 13520, 13845, 14196, 14768, 14910, 17040, 17745, 18460, 18928, 19383, 19880, 20280, 21840, 22152, 23660, 23856, 23998, 25844, 27690, 28392, 29820, 32305, 35490, 35997, 36920, 38766, 39760, 40560, 44304, 47320, 47996, 51688, 55380, 56784, 59640, 59995, 64610, 70980, 71994, 73840, 77532, 83993, 94640, 95992, 96915, 103376, 110760, 119280, 119990, 129220, 141960, 143988, 155064, 167986, 179985, 191984, 193830, 221520, 239980, 251979, 258440, 283920, 287976, 310128, 335972, 359970, 387660, 419965, 479960, 503958, 516880, 575952, 671944, 719940, 775320, 839930, 959920, 1007916, 1259895, 1343888, 1439880, 1550640, 1679860, 2015832, 2519790, 2879760, 3359720, 4031664, 5039580, 6719440, 10079160, 20158320]

約数ペア:

[(1, 20158320), (2, 10079160), (3, 6719440), (4, 5039580), (5, 4031664), (6, 3359720), (7, 2879760), (8, 2519790), (10, 2015832), (12, 1679860), (13, 1550640), (14, 1439880), (15, 1343888), (16, 1259895), (20, 1007916), (21, 959920), (24, 839930), (26, 775320), (28, 719940), (30, 671944), (35, 575952), (39, 516880), (40, 503958), (42, 479960), (48, 419965), (52, 387660), (56, 359970), (60, 335972), (65, 310128), (70, 287976), (71, 283920), (78, 258440), (80, 251979), (84, 239980), (91, 221520), (104, 193830), (105, 191984), (112, 179985), (120, 167986), (130, 155064), (140, 143988), (142, 141960), (156, 129220), (168, 119990), (169, 119280), (182, 110760), (195, 103376), (208, 96915), (210, 95992), (213, 94640), (240, 83993), (260, 77532), (273, 73840), (280, 71994), (284, 70980), (312, 64610), (336, 59995), (338, 59640), (355, 56784), (364, 55380), (390, 51688), (420, 47996), (426, 47320), (455, 44304), (497, 40560), (507, 39760), (520, 38766), (546, 36920), (560, 35997), (568, 35490), (624, 32305), (676, 29820), (710, 28392), (728, 27690), (780, 25844), (840, 23998), (845, 23856), (852, 23660), (910, 22152), (923, 21840), (994, 20280), (1014, 19880), (1040, 19383), (1065, 18928), (1092, 18460), (1136, 17745), (1183, 17040), (1352, 14910), (1365, 14768), (1420, 14196), (1456, 13845), (1491, 13520), (1560, 12922), (1680, 11999), (1690, 11928), (1704, 11830), (1820, 11076), (1846, 10920), (1988, 10140), (2028, 9940), (2130, 9464), (2184, 9230), (2366, 8520), (2485, 8112), (2535, 7952), (2704, 7455), (2730, 7384), (2769, 7280), (2840, 7098), (2982, 6760), (3120, 6461), (3380, 5964), (3408, 5915), (3549, 5680), (3640, 5538), (3692, 5460), (3976, 5070), (4056, 4970), (4260, 4732), (4368, 4615)]