20833880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 50112000

約数和(自身を除く): 29278120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 347, 380, 395, 632, 694, 760, 790, 1388, 1501, 1580, 1735, 2776, 3002, 3160, 3470, 6004, 6593, 6940, 7505, 12008, 13186, 13880, 15010, 26372, 27413, 30020, 32965, 52744, 54826, 60040, 65930, 109652, 131860, 137065, 219304, 263720, 274130, 520847, 548260, 1041694, 1096520, 2083388, 2604235, 4166776, 5208470, 10416940, 20833880]

約数ペア:

[(1, 20833880), (2, 10416940), (4, 5208470), (5, 4166776), (8, 2604235), (10, 2083388), (19, 1096520), (20, 1041694), (38, 548260), (40, 520847), (76, 274130), (79, 263720), (95, 219304), (152, 137065), (158, 131860), (190, 109652), (316, 65930), (347, 60040), (380, 54826), (395, 52744), (632, 32965), (694, 30020), (760, 27413), (790, 26372), (1388, 15010), (1501, 13880), (1580, 13186), (1735, 12008), (2776, 7505), (3002, 6940), (3160, 6593), (3470, 6004)]