128929720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 304326720

約数和(自身を除く): 175397000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 353, 397, 460, 706, 794, 920, 1412, 1588, 1765, 1985, 2824, 3176, 3530, 3970, 7060, 7940, 8119, 9131, 14120, 15880, 16238, 18262, 32476, 36524, 40595, 45655, 64952, 73048, 81190, 91310, 140141, 162380, 182620, 280282, 324760, 365240, 560564, 700705, 1121128, 1401410, 2802820, 3223243, 5605640, 6446486, 12892972, 16116215, 25785944, 32232430, 64464860, 128929720]

約数ペア:

[(1, 128929720), (2, 64464860), (4, 32232430), (5, 25785944), (8, 16116215), (10, 12892972), (20, 6446486), (23, 5605640), (40, 3223243), (46, 2802820), (92, 1401410), (115, 1121128), (184, 700705), (230, 560564), (353, 365240), (397, 324760), (460, 280282), (706, 182620), (794, 162380), (920, 140141), (1412, 91310), (1588, 81190), (1765, 73048), (1985, 64952), (2824, 45655), (3176, 40595), (3530, 36524), (3970, 32476), (7060, 18262), (7940, 16238), (8119, 15880), (9131, 14120)]