28870920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 104832000

約数和(自身を除く): 75961080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 52, 60, 62, 65, 72, 78, 90, 93, 104, 117, 120, 124, 130, 155, 156, 180, 186, 195, 199, 234, 248, 260, 279, 310, 312, 360, 372, 390, 398, 403, 465, 468, 520, 558, 585, 597, 620, 744, 780, 796, 806, 930, 936, 995, 1116, 1170, 1194, 1209, 1240, 1395, 1560, 1592, 1612, 1791, 1860, 1990, 2015, 2232, 2340, 2388, 2418, 2587, 2790, 2985, 3224, 3582, 3627, 3720, 3980, 4030, 4680, 4776, 4836, 5174, 5580, 5970, 6045, 6169, 7164, 7254, 7761, 7960, 8060, 8955, 9672, 10348, 11160, 11940, 12090, 12338, 12935, 14328, 14508, 15522, 16120, 17910, 18135, 18507, 20696, 23283, 23880, 24180, 24676, 25870, 29016, 30845, 31044, 35820, 36270, 37014, 38805, 46566, 48360, 49352, 51740, 55521, 61690, 62088, 71640, 72540, 74028, 77610, 80197, 92535, 93132, 103480, 111042, 116415, 123380, 145080, 148056, 155220, 160394, 185070, 186264, 222084, 232830, 240591, 246760, 277605, 310440, 320788, 370140, 400985, 444168, 465660, 481182, 555210, 641576, 721773, 740280, 801970, 931320, 962364, 1110420, 1202955, 1443546, 1603940, 1924728, 2220840, 2405910, 2887092, 3207880, 3608865, 4811820, 5774184, 7217730, 9623640, 14435460, 28870920]

約数ペア:

[(1, 28870920), (2, 14435460), (3, 9623640), (4, 7217730), (5, 5774184), (6, 4811820), (8, 3608865), (9, 3207880), (10, 2887092), (12, 2405910), (13, 2220840), (15, 1924728), (18, 1603940), (20, 1443546), (24, 1202955), (26, 1110420), (30, 962364), (31, 931320), (36, 801970), (39, 740280), (40, 721773), (45, 641576), (52, 555210), (60, 481182), (62, 465660), (65, 444168), (72, 400985), (78, 370140), (90, 320788), (93, 310440), (104, 277605), (117, 246760), (120, 240591), (124, 232830), (130, 222084), (155, 186264), (156, 185070), (180, 160394), (186, 155220), (195, 148056), (199, 145080), (234, 123380), (248, 116415), (260, 111042), (279, 103480), (310, 93132), (312, 92535), (360, 80197), (372, 77610), (390, 74028), (398, 72540), (403, 71640), (465, 62088), (468, 61690), (520, 55521), (558, 51740), (585, 49352), (597, 48360), (620, 46566), (744, 38805), (780, 37014), (796, 36270), (806, 35820), (930, 31044), (936, 30845), (995, 29016), (1116, 25870), (1170, 24676), (1194, 24180), (1209, 23880), (1240, 23283), (1395, 20696), (1560, 18507), (1592, 18135), (1612, 17910), (1791, 16120), (1860, 15522), (1990, 14508), (2015, 14328), (2232, 12935), (2340, 12338), (2388, 12090), (2418, 11940), (2587, 11160), (2790, 10348), (2985, 9672), (3224, 8955), (3582, 8060), (3627, 7960), (3720, 7761), (3980, 7254), (4030, 7164), (4680, 6169), (4776, 6045), (4836, 5970), (5174, 5580)]