261705720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70351}}^1$

素因数の和:70396

約数の個数: 64

約数和(自身を含む): 810455040

約数和(自身を除く): 548749320

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, 70351, 140702, 211053, 281404, 351755, 422106, 562808, 703510, 844212, 1055265, 1407020, 1688424, 2110530, 2180881, 2814040, 4221060, 4361762, 6542643, 8442120, 8723524, 10904405, 13085286, 17447048, 21808810, 26170572, 32713215, 43617620, 52341144, 65426430, 87235240, 130852860, 261705720]

約数ペア:

[(1, 261705720), (2, 130852860), (3, 87235240), (4, 65426430), (5, 52341144), (6, 43617620), (8, 32713215), (10, 26170572), (12, 21808810), (15, 17447048), (20, 13085286), (24, 10904405), (30, 8723524), (31, 8442120), (40, 6542643), (60, 4361762), (62, 4221060), (93, 2814040), (120, 2180881), (124, 2110530), (155, 1688424), (186, 1407020), (248, 1055265), (310, 844212), (372, 703510), (465, 562808), (620, 422106), (744, 351755), (930, 281404), (1240, 211053), (1860, 140702), (3720, 70351)]