20124572560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{36389}}^1$

素因数の和:36656

約数の個数: 80

約数和(自身を含む): 48516894720

約数和(自身を除く): 28392322160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 223, 248, 310, 446, 496, 620, 892, 1115, 1240, 1784, 2230, 2480, 3568, 4460, 6913, 8920, 13826, 17840, 27652, 34565, 36389, 55304, 69130, 72778, 110608, 138260, 145556, 181945, 276520, 291112, 363890, 553040, 582224, 727780, 1128059, 1455560, 2256118, 2911120, 4512236, 5640295, 8114747, 9024472, 11280590, 16229494, 18048944, 22561180, 32458988, 40573735, 45122360, 64917976, 81147470, 90244720, 129835952, 162294940, 251557157, 324589880, 503114314, 649179760, 1006228628, 1257785785, 2012457256, 2515571570, 4024914512, 5031143140, 10062286280, 20124572560]

約数ペア:

[(1, 20124572560), (2, 10062286280), (4, 5031143140), (5, 4024914512), (8, 2515571570), (10, 2012457256), (16, 1257785785), (20, 1006228628), (31, 649179760), (40, 503114314), (62, 324589880), (80, 251557157), (124, 162294940), (155, 129835952), (223, 90244720), (248, 81147470), (310, 64917976), (446, 45122360), (496, 40573735), (620, 32458988), (892, 22561180), (1115, 18048944), (1240, 16229494), (1784, 11280590), (2230, 9024472), (2480, 8114747), (3568, 5640295), (4460, 4512236), (6913, 2911120), (8920, 2256118), (13826, 1455560), (17840, 1128059), (27652, 727780), (34565, 582224), (36389, 553040), (55304, 363890), (69130, 291112), (72778, 276520), (110608, 181945), (138260, 145556)]