256637552

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{229}}^1\times {\mathrm{787}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 505659600

約数和(自身を除く): 249022048

約数列:

[1, 2, 4, 8, 16, 89, 178, 229, 356, 458, 712, 787, 916, 1424, 1574, 1832, 3148, 3664, 6296, 12592, 20381, 40762, 70043, 81524, 140086, 163048, 180223, 280172, 326096, 360446, 560344, 720892, 1120688, 1441784, 2883568, 16039847, 32079694, 64159388, 128318776, 256637552]

約数ペア:

[(1, 256637552), (2, 128318776), (4, 64159388), (8, 32079694), (16, 16039847), (89, 2883568), (178, 1441784), (229, 1120688), (356, 720892), (458, 560344), (712, 360446), (787, 326096), (916, 280172), (1424, 180223), (1574, 163048), (1832, 140086), (3148, 81524), (3664, 70043), (6296, 40762), (12592, 20381)]