1919376280

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1\times {\mathrm{1049}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 4365900000

約数和(自身を除く): 2446523720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 307, 596, 614, 745, 1049, 1192, 1228, 1490, 1535, 2098, 2456, 2980, 3070, 4196, 5245, 5960, 6140, 8392, 10490, 12280, 20980, 41960, 45743, 91486, 156301, 182972, 228715, 312602, 322043, 365944, 457430, 625204, 644086, 781505, 914860, 1250408, 1288172, 1563010, 1610215, 1829720, 2576344, 3126020, 3220430, 6252040, 6440860, 12881720, 47984407, 95968814, 191937628, 239922035, 383875256, 479844070, 959688140, 1919376280]

約数ペア:

[(1, 1919376280), (2, 959688140), (4, 479844070), (5, 383875256), (8, 239922035), (10, 191937628), (20, 95968814), (40, 47984407), (149, 12881720), (298, 6440860), (307, 6252040), (596, 3220430), (614, 3126020), (745, 2576344), (1049, 1829720), (1192, 1610215), (1228, 1563010), (1490, 1288172), (1535, 1250408), (2098, 914860), (2456, 781505), (2980, 644086), (3070, 625204), (4196, 457430), (5245, 365944), (5960, 322043), (6140, 312602), (8392, 228715), (10490, 182972), (12280, 156301), (20980, 91486), (41960, 45743)]