81849180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:308

約数の個数: 192

約数和(自身を含む): 281917440

約数和(自身を除く): 200068260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 37, 42, 46, 60, 69, 70, 74, 84, 92, 105, 111, 115, 138, 140, 148, 161, 185, 210, 222, 229, 230, 259, 276, 322, 345, 370, 420, 444, 458, 460, 483, 518, 555, 644, 687, 690, 740, 777, 805, 851, 916, 966, 1036, 1110, 1145, 1295, 1374, 1380, 1554, 1603, 1610, 1702, 1932, 2220, 2290, 2415, 2553, 2590, 2748, 3108, 3206, 3220, 3404, 3435, 3885, 4255, 4580, 4809, 4830, 5106, 5180, 5267, 5957, 6412, 6870, 7770, 8015, 8473, 8510, 9618, 9660, 10212, 10534, 11914, 12765, 13740, 15540, 15801, 16030, 16946, 17020, 17871, 19236, 21068, 23828, 24045, 25419, 25530, 26335, 29785, 31602, 32060, 33892, 35742, 36869, 42365, 48090, 50838, 51060, 52670, 59311, 59570, 63204, 71484, 73738, 79005, 84730, 89355, 96180, 101676, 105340, 110607, 118622, 119140, 127095, 147476, 158010, 169460, 177933, 178710, 184345, 194879, 221214, 237244, 254190, 296555, 316020, 355866, 357420, 368690, 389758, 442428, 508380, 553035, 584637, 593110, 711732, 737380, 779516, 889665, 974395, 1106070, 1169274, 1186220, 1364153, 1779330, 1948790, 2212140, 2338548, 2728306, 2923185, 3558660, 3897580, 4092459, 5456612, 5846370, 6820765, 8184918, 11692740, 13641530, 16369836, 20462295, 27283060, 40924590, 81849180]

約数ペア:

[(1, 81849180), (2, 40924590), (3, 27283060), (4, 20462295), (5, 16369836), (6, 13641530), (7, 11692740), (10, 8184918), (12, 6820765), (14, 5846370), (15, 5456612), (20, 4092459), (21, 3897580), (23, 3558660), (28, 2923185), (30, 2728306), (35, 2338548), (37, 2212140), (42, 1948790), (46, 1779330), (60, 1364153), (69, 1186220), (70, 1169274), (74, 1106070), (84, 974395), (92, 889665), (105, 779516), (111, 737380), (115, 711732), (138, 593110), (140, 584637), (148, 553035), (161, 508380), (185, 442428), (210, 389758), (222, 368690), (229, 357420), (230, 355866), (259, 316020), (276, 296555), (322, 254190), (345, 237244), (370, 221214), (420, 194879), (444, 184345), (458, 178710), (460, 177933), (483, 169460), (518, 158010), (555, 147476), (644, 127095), (687, 119140), (690, 118622), (740, 110607), (777, 105340), (805, 101676), (851, 96180), (916, 89355), (966, 84730), (1036, 79005), (1110, 73738), (1145, 71484), (1295, 63204), (1374, 59570), (1380, 59311), (1554, 52670), (1603, 51060), (1610, 50838), (1702, 48090), (1932, 42365), (2220, 36869), (2290, 35742), (2415, 33892), (2553, 32060), (2590, 31602), (2748, 29785), (3108, 26335), (3206, 25530), (3220, 25419), (3404, 24045), (3435, 23828), (3885, 21068), (4255, 19236), (4580, 17871), (4809, 17020), (4830, 16946), (5106, 16030), (5180, 15801), (5267, 15540), (5957, 13740), (6412, 12765), (6870, 11914), (7770, 10534), (8015, 10212), (8473, 9660), (8510, 9618)]