257142240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{178571}}^1$

素因数の和:178592

約数の個数: 72

約数和(自身を含む): 877502808

約数和(自身を除く): 620360568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 178571, 357142, 535713, 714284, 892855, 1071426, 1428568, 1607139, 1785710, 2142852, 2678565, 2857136, 3214278, 3571420, 4285704, 5357130, 5714272, 6428556, 7142840, 8035695, 8571408, 10714260, 12857112, 14285680, 16071390, 17142816, 21428520, 25714224, 28571360, 32142780, 42857040, 51428448, 64285560, 85714080, 128571120, 257142240]

約数ペア:

[(1, 257142240), (2, 128571120), (3, 85714080), (4, 64285560), (5, 51428448), (6, 42857040), (8, 32142780), (9, 28571360), (10, 25714224), (12, 21428520), (15, 17142816), (16, 16071390), (18, 14285680), (20, 12857112), (24, 10714260), (30, 8571408), (32, 8035695), (36, 7142840), (40, 6428556), (45, 5714272), (48, 5357130), (60, 4285704), (72, 3571420), (80, 3214278), (90, 2857136), (96, 2678565), (120, 2142852), (144, 1785710), (160, 1607139), (180, 1428568), (240, 1071426), (288, 892855), (360, 714284), (480, 535713), (720, 357142), (1440, 178571)]