31304280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:553

約数の個数: 128

約数和(自身を含む): 108864000

約数和(自身を除く): 77559720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 83, 84, 105, 120, 140, 166, 168, 210, 249, 280, 332, 415, 420, 449, 498, 581, 664, 830, 840, 898, 996, 1162, 1245, 1347, 1660, 1743, 1796, 1992, 2245, 2324, 2490, 2694, 2905, 3143, 3320, 3486, 3592, 4490, 4648, 4980, 5388, 5810, 6286, 6735, 6972, 8715, 8980, 9429, 9960, 10776, 11620, 12572, 13470, 13944, 15715, 17430, 17960, 18858, 23240, 25144, 26940, 31430, 34860, 37267, 37716, 47145, 53880, 62860, 69720, 74534, 75432, 94290, 111801, 125720, 149068, 186335, 188580, 223602, 260869, 298136, 372670, 377160, 447204, 521738, 559005, 745340, 782607, 894408, 1043476, 1118010, 1304345, 1490680, 1565214, 2086952, 2236020, 2608690, 3130428, 3913035, 4472040, 5217380, 6260856, 7826070, 10434760, 15652140, 31304280]

約数ペア:

[(1, 31304280), (2, 15652140), (3, 10434760), (4, 7826070), (5, 6260856), (6, 5217380), (7, 4472040), (8, 3913035), (10, 3130428), (12, 2608690), (14, 2236020), (15, 2086952), (20, 1565214), (21, 1490680), (24, 1304345), (28, 1118010), (30, 1043476), (35, 894408), (40, 782607), (42, 745340), (56, 559005), (60, 521738), (70, 447204), (83, 377160), (84, 372670), (105, 298136), (120, 260869), (140, 223602), (166, 188580), (168, 186335), (210, 149068), (249, 125720), (280, 111801), (332, 94290), (415, 75432), (420, 74534), (449, 69720), (498, 62860), (581, 53880), (664, 47145), (830, 37716), (840, 37267), (898, 34860), (996, 31430), (1162, 26940), (1245, 25144), (1347, 23240), (1660, 18858), (1743, 17960), (1796, 17430), (1992, 15715), (2245, 13944), (2324, 13470), (2490, 12572), (2694, 11620), (2905, 10776), (3143, 9960), (3320, 9429), (3486, 8980), (3592, 8715), (4490, 6972), (4648, 6735), (4980, 6286), (5388, 5810)]