989573620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1021}}^1$

素因数の和:1110

約数の個数: 144

約数和(自身を含む): 2583681408

約数和(自身を除く): 1594107788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 43, 46, 49, 70, 86, 92, 98, 115, 140, 161, 172, 196, 215, 230, 245, 301, 322, 430, 460, 490, 602, 644, 805, 860, 980, 989, 1021, 1127, 1204, 1505, 1610, 1978, 2042, 2107, 2254, 3010, 3220, 3956, 4084, 4214, 4508, 4945, 5105, 5635, 6020, 6923, 7147, 8428, 9890, 10210, 10535, 11270, 13846, 14294, 19780, 20420, 21070, 22540, 23483, 27692, 28588, 34615, 35735, 42140, 43903, 46966, 48461, 50029, 69230, 71470, 87806, 93932, 96922, 100058, 117415, 138460, 142940, 164381, 175612, 193844, 200116, 219515, 234830, 242305, 250145, 307321, 328762, 439030, 469660, 484610, 500290, 614642, 657524, 821905, 878060, 969220, 1000580, 1009769, 1150667, 1229284, 1536605, 1643810, 2019538, 2151247, 2301334, 3073210, 3287620, 4039076, 4302494, 4602668, 5048845, 5753335, 6146420, 7068383, 8604988, 10097690, 10756235, 11506670, 14136766, 20195380, 21512470, 23013340, 28273532, 35341915, 43024940, 49478681, 70683830, 98957362, 141367660, 197914724, 247393405, 494786810, 989573620]

約数ペア:

[(1, 989573620), (2, 494786810), (4, 247393405), (5, 197914724), (7, 141367660), (10, 98957362), (14, 70683830), (20, 49478681), (23, 43024940), (28, 35341915), (35, 28273532), (43, 23013340), (46, 21512470), (49, 20195380), (70, 14136766), (86, 11506670), (92, 10756235), (98, 10097690), (115, 8604988), (140, 7068383), (161, 6146420), (172, 5753335), (196, 5048845), (215, 4602668), (230, 4302494), (245, 4039076), (301, 3287620), (322, 3073210), (430, 2301334), (460, 2151247), (490, 2019538), (602, 1643810), (644, 1536605), (805, 1229284), (860, 1150667), (980, 1009769), (989, 1000580), (1021, 969220), (1127, 878060), (1204, 821905), (1505, 657524), (1610, 614642), (1978, 500290), (2042, 484610), (2107, 469660), (2254, 439030), (3010, 328762), (3220, 307321), (3956, 250145), (4084, 242305), (4214, 234830), (4508, 219515), (4945, 200116), (5105, 193844), (5635, 175612), (6020, 164381), (6923, 142940), (7147, 138460), (8428, 117415), (9890, 100058), (10210, 96922), (10535, 93932), (11270, 87806), (13846, 71470), (14294, 69230), (19780, 50029), (20420, 48461), (21070, 46966), (22540, 43903), (23483, 42140), (27692, 35735), (28588, 34615)]