257489460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{16073}}^1$

素因数の和:16177

約数の個数: 72

約数和(自身を含む): 789876360

約数和(自身を除く): 532386900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 5340, 8010, 16020, 16073, 32146, 48219, 64292, 80365, 96438, 144657, 160730, 192876, 241095, 289314, 321460, 482190, 578628, 723285, 964380, 1430497, 1446570, 2860994, 2893140, 4291491, 5721988, 7152485, 8582982, 12874473, 14304970, 17165964, 21457455, 25748946, 28609940, 42914910, 51497892, 64372365, 85829820, 128744730, 257489460]

約数ペア:

[(1, 257489460), (2, 128744730), (3, 85829820), (4, 64372365), (5, 51497892), (6, 42914910), (9, 28609940), (10, 25748946), (12, 21457455), (15, 17165964), (18, 14304970), (20, 12874473), (30, 8582982), (36, 7152485), (45, 5721988), (60, 4291491), (89, 2893140), (90, 2860994), (178, 1446570), (180, 1430497), (267, 964380), (356, 723285), (445, 578628), (534, 482190), (801, 321460), (890, 289314), (1068, 241095), (1335, 192876), (1602, 160730), (1780, 144657), (2670, 96438), (3204, 80365), (4005, 64292), (5340, 48219), (8010, 32146), (16020, 16073)]