40848080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:245

約数の個数: 160

約数和(自身を含む): 121325568

約数和(自身を除く): 80477488

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 181, 182, 208, 217, 248, 260, 280, 310, 362, 364, 403, 434, 455, 496, 520, 560, 620, 724, 728, 806, 868, 905, 910, 1040, 1085, 1240, 1267, 1448, 1456, 1612, 1736, 1810, 1820, 2015, 2170, 2353, 2480, 2534, 2821, 2896, 3224, 3472, 3620, 3640, 4030, 4340, 4706, 5068, 5611, 5642, 6335, 6448, 7240, 7280, 8060, 8680, 9412, 10136, 11222, 11284, 11765, 12670, 14105, 14480, 16120, 16471, 17360, 18824, 20272, 22444, 22568, 23530, 25340, 28055, 28210, 32240, 32942, 37648, 39277, 44888, 45136, 47060, 50680, 56110, 56420, 65884, 72943, 78554, 82355, 89776, 94120, 101360, 112220, 112840, 131768, 145886, 157108, 164710, 188240, 196385, 224440, 225680, 263536, 291772, 314216, 329420, 364715, 392770, 448880, 510601, 583544, 628432, 658840, 729430, 785540, 1021202, 1167088, 1317680, 1458860, 1571080, 2042404, 2553005, 2917720, 3142160, 4084808, 5106010, 5835440, 8169616, 10212020, 20424040, 40848080]

約数ペア:

[(1, 40848080), (2, 20424040), (4, 10212020), (5, 8169616), (7, 5835440), (8, 5106010), (10, 4084808), (13, 3142160), (14, 2917720), (16, 2553005), (20, 2042404), (26, 1571080), (28, 1458860), (31, 1317680), (35, 1167088), (40, 1021202), (52, 785540), (56, 729430), (62, 658840), (65, 628432), (70, 583544), (80, 510601), (91, 448880), (104, 392770), (112, 364715), (124, 329420), (130, 314216), (140, 291772), (155, 263536), (181, 225680), (182, 224440), (208, 196385), (217, 188240), (248, 164710), (260, 157108), (280, 145886), (310, 131768), (362, 112840), (364, 112220), (403, 101360), (434, 94120), (455, 89776), (496, 82355), (520, 78554), (560, 72943), (620, 65884), (724, 56420), (728, 56110), (806, 50680), (868, 47060), (905, 45136), (910, 44888), (1040, 39277), (1085, 37648), (1240, 32942), (1267, 32240), (1448, 28210), (1456, 28055), (1612, 25340), (1736, 23530), (1810, 22568), (1820, 22444), (2015, 20272), (2170, 18824), (2353, 17360), (2480, 16471), (2534, 16120), (2821, 14480), (2896, 14105), (3224, 12670), (3472, 11765), (3620, 11284), (3640, 11222), (4030, 10136), (4340, 9412), (4706, 8680), (5068, 8060), (5611, 7280), (5642, 7240), (6335, 6448)]