1821092520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37657}}^1$

素因数の和:37715

約数の個数: 128

約数和(自身を含む): 6073482240

約数和(自身を除く): 4252389720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 620, 744, 780, 806, 930, 1209, 1240, 1560, 1612, 1860, 2015, 2418, 3224, 3720, 4030, 4836, 6045, 8060, 9672, 12090, 16120, 24180, 37657, 48360, 75314, 112971, 150628, 188285, 225942, 301256, 376570, 451884, 489541, 564855, 753140, 903768, 979082, 1129710, 1167367, 1468623, 1506280, 1958164, 2259420, 2334734, 2447705, 2937246, 3502101, 3916328, 4518840, 4669468, 4895410, 5836835, 5874492, 7004202, 7343115, 9338936, 9790820, 11673670, 11748984, 14008404, 14686230, 15175771, 17510505, 19581640, 23347340, 28016808, 29372460, 30351542, 35021010, 45527313, 46694680, 58744920, 60703084, 70042020, 75878855, 91054626, 121406168, 140084040, 151757710, 182109252, 227636565, 303515420, 364218504, 455273130, 607030840, 910546260, 1821092520]

約数ペア:

[(1, 1821092520), (2, 910546260), (3, 607030840), (4, 455273130), (5, 364218504), (6, 303515420), (8, 227636565), (10, 182109252), (12, 151757710), (13, 140084040), (15, 121406168), (20, 91054626), (24, 75878855), (26, 70042020), (30, 60703084), (31, 58744920), (39, 46694680), (40, 45527313), (52, 35021010), (60, 30351542), (62, 29372460), (65, 28016808), (78, 23347340), (93, 19581640), (104, 17510505), (120, 15175771), (124, 14686230), (130, 14008404), (155, 11748984), (156, 11673670), (186, 9790820), (195, 9338936), (248, 7343115), (260, 7004202), (310, 5874492), (312, 5836835), (372, 4895410), (390, 4669468), (403, 4518840), (465, 3916328), (520, 3502101), (620, 2937246), (744, 2447705), (780, 2334734), (806, 2259420), (930, 1958164), (1209, 1506280), (1240, 1468623), (1560, 1167367), (1612, 1129710), (1860, 979082), (2015, 903768), (2418, 753140), (3224, 564855), (3720, 489541), (4030, 451884), (4836, 376570), (6045, 301256), (8060, 225942), (9672, 188285), (12090, 150628), (16120, 112971), (24180, 75314), (37657, 48360)]