127021700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 298939200

約数和(自身を除く): 171917500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 199, 260, 325, 398, 491, 650, 796, 982, 995, 1300, 1964, 1990, 2455, 2587, 3980, 4910, 4975, 5174, 6383, 9820, 9950, 10348, 12275, 12766, 12935, 19900, 24550, 25532, 25870, 31915, 49100, 51740, 63830, 64675, 97709, 127660, 129350, 159575, 195418, 258700, 319150, 390836, 488545, 638300, 977090, 1270217, 1954180, 2442725, 2540434, 4885450, 5080868, 6351085, 9770900, 12702170, 25404340, 31755425, 63510850, 127021700]

約数ペア:

[(1, 127021700), (2, 63510850), (4, 31755425), (5, 25404340), (10, 12702170), (13, 9770900), (20, 6351085), (25, 5080868), (26, 4885450), (50, 2540434), (52, 2442725), (65, 1954180), (100, 1270217), (130, 977090), (199, 638300), (260, 488545), (325, 390836), (398, 319150), (491, 258700), (650, 195418), (796, 159575), (982, 129350), (995, 127660), (1300, 97709), (1964, 64675), (1990, 63830), (2455, 51740), (2587, 49100), (3980, 31915), (4910, 25870), (4975, 25532), (5174, 24550), (6383, 19900), (9820, 12935), (9950, 12766), (10348, 12275)]