258542480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 160

約数和(自身を含む): 725096448

約数和(自身を除く): 466553968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 53, 56, 62, 70, 80, 106, 112, 124, 140, 155, 212, 217, 248, 265, 280, 281, 310, 371, 424, 434, 496, 530, 560, 562, 620, 742, 848, 868, 1060, 1085, 1124, 1240, 1405, 1484, 1643, 1736, 1855, 1967, 2120, 2170, 2248, 2480, 2810, 2968, 3286, 3472, 3710, 3934, 4240, 4340, 4496, 5620, 5936, 6572, 7420, 7868, 8215, 8680, 8711, 9835, 11240, 11501, 13144, 14840, 14893, 15736, 16430, 17360, 17422, 19670, 22480, 23002, 26288, 29680, 29786, 31472, 32860, 34844, 39340, 43555, 46004, 57505, 59572, 60977, 65720, 69688, 74465, 78680, 87110, 92008, 104251, 115010, 119144, 121954, 131440, 139376, 148930, 157360, 174220, 184016, 208502, 230020, 238288, 243908, 297860, 304885, 348440, 417004, 460040, 461683, 487816, 521255, 595720, 609770, 696880, 834008, 920080, 923366, 975632, 1042510, 1191440, 1219540, 1668016, 1846732, 2085020, 2308415, 2439080, 3231781, 3693464, 4170040, 4616830, 4878160, 6463562, 7386928, 8340080, 9233660, 12927124, 16158905, 18467320, 25854248, 32317810, 36934640, 51708496, 64635620, 129271240, 258542480]

約数ペア:

[(1, 258542480), (2, 129271240), (4, 64635620), (5, 51708496), (7, 36934640), (8, 32317810), (10, 25854248), (14, 18467320), (16, 16158905), (20, 12927124), (28, 9233660), (31, 8340080), (35, 7386928), (40, 6463562), (53, 4878160), (56, 4616830), (62, 4170040), (70, 3693464), (80, 3231781), (106, 2439080), (112, 2308415), (124, 2085020), (140, 1846732), (155, 1668016), (212, 1219540), (217, 1191440), (248, 1042510), (265, 975632), (280, 923366), (281, 920080), (310, 834008), (371, 696880), (424, 609770), (434, 595720), (496, 521255), (530, 487816), (560, 461683), (562, 460040), (620, 417004), (742, 348440), (848, 304885), (868, 297860), (1060, 243908), (1085, 238288), (1124, 230020), (1240, 208502), (1405, 184016), (1484, 174220), (1643, 157360), (1736, 148930), (1855, 139376), (1967, 131440), (2120, 121954), (2170, 119144), (2248, 115010), (2480, 104251), (2810, 92008), (2968, 87110), (3286, 78680), (3472, 74465), (3710, 69688), (3934, 65720), (4240, 60977), (4340, 59572), (4496, 57505), (5620, 46004), (5936, 43555), (6572, 39340), (7420, 34844), (7868, 32860), (8215, 31472), (8680, 29786), (8711, 29680), (9835, 26288), (11240, 23002), (11501, 22480), (13144, 19670), (14840, 17422), (14893, 17360), (15736, 16430)]