4002440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 9979200

約数和(自身を除く): 5976760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 179, 215, 260, 344, 358, 430, 520, 559, 716, 860, 895, 1118, 1432, 1720, 1790, 2236, 2327, 2795, 3580, 4472, 4654, 5590, 7160, 7697, 9308, 11180, 11635, 15394, 18616, 22360, 23270, 30788, 38485, 46540, 61576, 76970, 93080, 100061, 153940, 200122, 307880, 400244, 500305, 800488, 1000610, 2001220, 4002440]

約数ペア:

[(1, 4002440), (2, 2001220), (4, 1000610), (5, 800488), (8, 500305), (10, 400244), (13, 307880), (20, 200122), (26, 153940), (40, 100061), (43, 93080), (52, 76970), (65, 61576), (86, 46540), (104, 38485), (130, 30788), (172, 23270), (179, 22360), (215, 18616), (260, 15394), (344, 11635), (358, 11180), (430, 9308), (520, 7697), (559, 7160), (716, 5590), (860, 4654), (895, 4472), (1118, 3580), (1432, 2795), (1720, 2327), (1790, 2236)]