256878960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{293}}^1$

素因数の和:603

約数の個数: 160

約数和(自身を含む): 863569728

約数和(自身を除く): 606690768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 281, 293, 312, 390, 520, 562, 586, 624, 780, 843, 879, 1040, 1124, 1172, 1405, 1465, 1560, 1686, 1758, 2248, 2344, 2810, 2930, 3120, 3372, 3516, 3653, 3809, 4215, 4395, 4496, 4688, 5620, 5860, 6744, 7032, 7306, 7618, 8430, 8790, 10959, 11240, 11427, 11720, 13488, 14064, 14612, 15236, 16860, 17580, 18265, 19045, 21918, 22480, 22854, 23440, 29224, 30472, 33720, 35160, 36530, 38090, 43836, 45708, 54795, 57135, 58448, 60944, 67440, 70320, 73060, 76180, 82333, 87672, 91416, 109590, 114270, 146120, 152360, 164666, 175344, 182832, 219180, 228540, 246999, 292240, 304720, 329332, 411665, 438360, 457080, 493998, 658664, 823330, 876720, 914160, 987996, 1070329, 1234995, 1317328, 1646660, 1975992, 2140658, 2469990, 3210987, 3293320, 3951984, 4281316, 4939980, 5351645, 6421974, 6586640, 8562632, 9879960, 10703290, 12843948, 16054935, 17125264, 19759920, 21406580, 25687896, 32109870, 42813160, 51375792, 64219740, 85626320, 128439480, 256878960]

約数ペア:

[(1, 256878960), (2, 128439480), (3, 85626320), (4, 64219740), (5, 51375792), (6, 42813160), (8, 32109870), (10, 25687896), (12, 21406580), (13, 19759920), (15, 17125264), (16, 16054935), (20, 12843948), (24, 10703290), (26, 9879960), (30, 8562632), (39, 6586640), (40, 6421974), (48, 5351645), (52, 4939980), (60, 4281316), (65, 3951984), (78, 3293320), (80, 3210987), (104, 2469990), (120, 2140658), (130, 1975992), (156, 1646660), (195, 1317328), (208, 1234995), (240, 1070329), (260, 987996), (281, 914160), (293, 876720), (312, 823330), (390, 658664), (520, 493998), (562, 457080), (586, 438360), (624, 411665), (780, 329332), (843, 304720), (879, 292240), (1040, 246999), (1124, 228540), (1172, 219180), (1405, 182832), (1465, 175344), (1560, 164666), (1686, 152360), (1758, 146120), (2248, 114270), (2344, 109590), (2810, 91416), (2930, 87672), (3120, 82333), (3372, 76180), (3516, 73060), (3653, 70320), (3809, 67440), (4215, 60944), (4395, 58448), (4496, 57135), (4688, 54795), (5620, 45708), (5860, 43836), (6744, 38090), (7032, 36530), (7306, 35160), (7618, 33720), (8430, 30472), (8790, 29224), (10959, 23440), (11240, 22854), (11427, 22480), (11720, 21918), (13488, 19045), (14064, 18265), (14612, 17580), (15236, 16860)]