25627980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:428

約数の個数: 144

約数和(自身を含む): 87333120

約数和(自身を除く): 61705140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 379, 420, 460, 483, 490, 588, 644, 690, 735, 758, 805, 966, 980, 1127, 1137, 1380, 1470, 1516, 1610, 1895, 1932, 2254, 2274, 2415, 2653, 2940, 3220, 3381, 3790, 4508, 4548, 4830, 5306, 5635, 5685, 6762, 7580, 7959, 8717, 9660, 10612, 11270, 11370, 13265, 13524, 15918, 16905, 17434, 18571, 22540, 22740, 26151, 26530, 31836, 33810, 34868, 37142, 39795, 43585, 52302, 53060, 55713, 61019, 67620, 74284, 79590, 87170, 92855, 104604, 111426, 122038, 130755, 159180, 174340, 183057, 185710, 222852, 244076, 261510, 278565, 305095, 366114, 371420, 427133, 523020, 557130, 610190, 732228, 854266, 915285, 1114260, 1220380, 1281399, 1708532, 1830570, 2135665, 2562798, 3661140, 4271330, 5125596, 6406995, 8542660, 12813990, 25627980]

約数ペア:

[(1, 25627980), (2, 12813990), (3, 8542660), (4, 6406995), (5, 5125596), (6, 4271330), (7, 3661140), (10, 2562798), (12, 2135665), (14, 1830570), (15, 1708532), (20, 1281399), (21, 1220380), (23, 1114260), (28, 915285), (30, 854266), (35, 732228), (42, 610190), (46, 557130), (49, 523020), (60, 427133), (69, 371420), (70, 366114), (84, 305095), (92, 278565), (98, 261510), (105, 244076), (115, 222852), (138, 185710), (140, 183057), (147, 174340), (161, 159180), (196, 130755), (210, 122038), (230, 111426), (245, 104604), (276, 92855), (294, 87170), (322, 79590), (345, 74284), (379, 67620), (420, 61019), (460, 55713), (483, 53060), (490, 52302), (588, 43585), (644, 39795), (690, 37142), (735, 34868), (758, 33810), (805, 31836), (966, 26530), (980, 26151), (1127, 22740), (1137, 22540), (1380, 18571), (1470, 17434), (1516, 16905), (1610, 15918), (1895, 13524), (1932, 13265), (2254, 11370), (2274, 11270), (2415, 10612), (2653, 9660), (2940, 8717), (3220, 7959), (3381, 7580), (3790, 6762), (4508, 5685), (4548, 5635), (4830, 5306)]