257948520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69341}}^1$

素因数の和:69386

約数の個数: 64

約数和(自身を含む): 798819840

約数和(自身を除く): 540871320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 69341, 138682, 208023, 277364, 346705, 416046, 554728, 693410, 832092, 1040115, 1386820, 1664184, 2080230, 2149571, 2773640, 4160460, 4299142, 6448713, 8320920, 8598284, 10747855, 12897426, 17196568, 21495710, 25794852, 32243565, 42991420, 51589704, 64487130, 85982840, 128974260, 257948520]

約数ペア:

[(1, 257948520), (2, 128974260), (3, 85982840), (4, 64487130), (5, 51589704), (6, 42991420), (8, 32243565), (10, 25794852), (12, 21495710), (15, 17196568), (20, 12897426), (24, 10747855), (30, 8598284), (31, 8320920), (40, 6448713), (60, 4299142), (62, 4160460), (93, 2773640), (120, 2149571), (124, 2080230), (155, 1664184), (186, 1386820), (248, 1040115), (310, 832092), (372, 693410), (465, 554728), (620, 416046), (744, 346705), (930, 277364), (1240, 208023), (1860, 138682), (3720, 69341)]