140490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{223}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 419328

約数和(自身を除く): 278838

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 223, 315, 446, 630, 669, 1115, 1338, 1561, 2007, 2230, 3122, 3345, 4014, 4683, 6690, 7805, 9366, 10035, 14049, 15610, 20070, 23415, 28098, 46830, 70245, 140490]

約数ペア:

[(1, 140490), (2, 70245), (3, 46830), (5, 28098), (6, 23415), (7, 20070), (9, 15610), (10, 14049), (14, 10035), (15, 9366), (18, 7805), (21, 6690), (30, 4683), (35, 4014), (42, 3345), (45, 3122), (63, 2230), (70, 2007), (90, 1561), (105, 1338), (126, 1115), (210, 669), (223, 630), (315, 446)]