64211560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{181}}^2$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 168997590

約数和(自身を除く): 104786030

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 181, 196, 245, 280, 362, 392, 490, 724, 905, 980, 1267, 1448, 1810, 1960, 2534, 3620, 5068, 6335, 7240, 8869, 10136, 12670, 17738, 25340, 32761, 35476, 44345, 50680, 65522, 70952, 88690, 131044, 163805, 177380, 229327, 262088, 327610, 354760, 458654, 655220, 917308, 1146635, 1310440, 1605289, 1834616, 2293270, 3210578, 4586540, 6421156, 8026445, 9173080, 12842312, 16052890, 32105780, 64211560]

約数ペア:

[(1, 64211560), (2, 32105780), (4, 16052890), (5, 12842312), (7, 9173080), (8, 8026445), (10, 6421156), (14, 4586540), (20, 3210578), (28, 2293270), (35, 1834616), (40, 1605289), (49, 1310440), (56, 1146635), (70, 917308), (98, 655220), (140, 458654), (181, 354760), (196, 327610), (245, 262088), (280, 229327), (362, 177380), (392, 163805), (490, 131044), (724, 88690), (905, 70952), (980, 65522), (1267, 50680), (1448, 44345), (1810, 35476), (1960, 32761), (2534, 25340), (3620, 17738), (5068, 12670), (6335, 10136), (7240, 8869)]