81345240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 281698560

約数和(自身を除く): 200353320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 37, 40, 45, 60, 62, 72, 74, 90, 93, 111, 120, 124, 148, 155, 180, 185, 186, 197, 222, 248, 279, 296, 310, 333, 360, 370, 372, 394, 444, 465, 555, 558, 591, 620, 666, 740, 744, 788, 888, 930, 985, 1110, 1116, 1147, 1182, 1240, 1332, 1395, 1480, 1576, 1665, 1773, 1860, 1970, 2220, 2232, 2294, 2364, 2664, 2790, 2955, 3330, 3441, 3546, 3720, 3940, 4440, 4588, 4728, 5580, 5735, 5910, 6107, 6660, 6882, 7092, 7289, 7880, 8865, 9176, 10323, 11160, 11470, 11820, 12214, 13320, 13764, 14184, 14578, 17205, 17730, 18321, 20646, 21867, 22940, 23640, 24428, 27528, 29156, 30535, 34410, 35460, 36445, 36642, 41292, 43734, 45880, 48856, 51615, 54963, 58312, 61070, 65601, 68820, 70920, 72890, 73284, 82584, 87468, 91605, 103230, 109335, 109926, 122140, 131202, 137640, 145780, 146568, 174936, 183210, 206460, 218670, 219852, 225959, 244280, 262404, 274815, 291560, 328005, 366420, 412920, 437340, 439704, 451918, 524808, 549630, 656010, 677877, 732840, 874680, 903836, 1099260, 1129795, 1312020, 1355754, 1807672, 2033631, 2198520, 2259590, 2624040, 2711508, 3389385, 4067262, 4519180, 5423016, 6778770, 8134524, 9038360, 10168155, 13557540, 16269048, 20336310, 27115080, 40672620, 81345240]

約数ペア:

[(1, 81345240), (2, 40672620), (3, 27115080), (4, 20336310), (5, 16269048), (6, 13557540), (8, 10168155), (9, 9038360), (10, 8134524), (12, 6778770), (15, 5423016), (18, 4519180), (20, 4067262), (24, 3389385), (30, 2711508), (31, 2624040), (36, 2259590), (37, 2198520), (40, 2033631), (45, 1807672), (60, 1355754), (62, 1312020), (72, 1129795), (74, 1099260), (90, 903836), (93, 874680), (111, 732840), (120, 677877), (124, 656010), (148, 549630), (155, 524808), (180, 451918), (185, 439704), (186, 437340), (197, 412920), (222, 366420), (248, 328005), (279, 291560), (296, 274815), (310, 262404), (333, 244280), (360, 225959), (370, 219852), (372, 218670), (394, 206460), (444, 183210), (465, 174936), (555, 146568), (558, 145780), (591, 137640), (620, 131202), (666, 122140), (740, 109926), (744, 109335), (788, 103230), (888, 91605), (930, 87468), (985, 82584), (1110, 73284), (1116, 72890), (1147, 70920), (1182, 68820), (1240, 65601), (1332, 61070), (1395, 58312), (1480, 54963), (1576, 51615), (1665, 48856), (1773, 45880), (1860, 43734), (1970, 41292), (2220, 36642), (2232, 36445), (2294, 35460), (2364, 34410), (2664, 30535), (2790, 29156), (2955, 27528), (3330, 24428), (3441, 23640), (3546, 22940), (3720, 21867), (3940, 20646), (4440, 18321), (4588, 17730), (4728, 17205), (5580, 14578), (5735, 14184), (5910, 13764), (6107, 13320), (6660, 12214), (6882, 11820), (7092, 11470), (7289, 11160), (7880, 10323), (8865, 9176)]