81565890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{55487}}^1$

素因数の和:55511

約数の個数: 48

約数和(自身を含む): 227722752

約数和(自身を除く): 146156862

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 55487, 110974, 166461, 277435, 332922, 388409, 554870, 776818, 832305, 1165227, 1664610, 1942045, 2330454, 2718863, 3884090, 5437726, 5826135, 8156589, 11652270, 13594315, 16313178, 27188630, 40782945, 81565890]

約数ペア:

[(1, 81565890), (2, 40782945), (3, 27188630), (5, 16313178), (6, 13594315), (7, 11652270), (10, 8156589), (14, 5826135), (15, 5437726), (21, 3884090), (30, 2718863), (35, 2330454), (42, 1942045), (49, 1664610), (70, 1165227), (98, 832305), (105, 776818), (147, 554870), (210, 388409), (245, 332922), (294, 277435), (490, 166461), (735, 110974), (1470, 55487)]