80858540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{601}}^1$

素因数の和:679

約数の個数: 72

約数和(自身を含む): 200856096

約数和(自身を除く): 119997556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 601, 620, 868, 961, 1085, 1202, 1922, 2170, 2404, 3005, 3844, 4207, 4340, 4805, 6010, 6727, 8414, 9610, 12020, 13454, 16828, 18631, 19220, 21035, 26908, 33635, 37262, 42070, 67270, 74524, 84140, 93155, 130417, 134540, 186310, 260834, 372620, 521668, 577561, 652085, 1155122, 1304170, 2310244, 2608340, 2887805, 4042927, 5775610, 8085854, 11551220, 16171708, 20214635, 40429270, 80858540]

約数ペア:

[(1, 80858540), (2, 40429270), (4, 20214635), (5, 16171708), (7, 11551220), (10, 8085854), (14, 5775610), (20, 4042927), (28, 2887805), (31, 2608340), (35, 2310244), (62, 1304170), (70, 1155122), (124, 652085), (140, 577561), (155, 521668), (217, 372620), (310, 260834), (434, 186310), (601, 134540), (620, 130417), (868, 93155), (961, 84140), (1085, 74524), (1202, 67270), (1922, 42070), (2170, 37262), (2404, 33635), (3005, 26908), (3844, 21035), (4207, 19220), (4340, 18631), (4805, 16828), (6010, 13454), (6727, 12020), (8414, 9610)]