8913320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 22029840

約数和(自身を除く): 13116520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 281, 305, 488, 520, 562, 610, 793, 1124, 1220, 1405, 1586, 2248, 2440, 2810, 3172, 3653, 3965, 5620, 6344, 7306, 7930, 11240, 14612, 15860, 17141, 18265, 29224, 31720, 34282, 36530, 68564, 73060, 85705, 137128, 146120, 171410, 222833, 342820, 445666, 685640, 891332, 1114165, 1782664, 2228330, 4456660, 8913320]

約数ペア:

[(1, 8913320), (2, 4456660), (4, 2228330), (5, 1782664), (8, 1114165), (10, 891332), (13, 685640), (20, 445666), (26, 342820), (40, 222833), (52, 171410), (61, 146120), (65, 137128), (104, 85705), (122, 73060), (130, 68564), (244, 36530), (260, 34282), (281, 31720), (305, 29224), (488, 18265), (520, 17141), (562, 15860), (610, 14612), (793, 11240), (1124, 7930), (1220, 7306), (1405, 6344), (1586, 5620), (2248, 3965), (2440, 3653), (2810, 3172)]