128987376

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{383891}}^1$

素因数の和:383909

約数の個数: 40

約数和(自身を含む): 380820864

約数和(自身を除く): 251833488

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 383891, 767782, 1151673, 1535564, 2303346, 2687237, 3071128, 4606692, 5374474, 6142256, 8061711, 9213384, 10748948, 16123422, 18426768, 21497896, 32246844, 42995792, 64493688, 128987376]

約数ペア:

[(1, 128987376), (2, 64493688), (3, 42995792), (4, 32246844), (6, 21497896), (7, 18426768), (8, 16123422), (12, 10748948), (14, 9213384), (16, 8061711), (21, 6142256), (24, 5374474), (28, 4606692), (42, 3071128), (48, 2687237), (56, 2303346), (84, 1535564), (112, 1151673), (168, 767782), (336, 383891)]