201661780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{2963}}^1$

素因数の和:3096

約数の個数: 48

約数和(自身を含む): 439193664

約数和(自身を除く): 237531884

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 2963, 3403, 5926, 6806, 11852, 13612, 14815, 17015, 29630, 34030, 59260, 68060, 121483, 242966, 245929, 485932, 491858, 607415, 983716, 1214830, 1229645, 2429660, 2459290, 4918580, 10083089, 20166178, 40332356, 50415445, 100830890, 201661780]

約数ペア:

[(1, 201661780), (2, 100830890), (4, 50415445), (5, 40332356), (10, 20166178), (20, 10083089), (41, 4918580), (82, 2459290), (83, 2429660), (164, 1229645), (166, 1214830), (205, 983716), (332, 607415), (410, 491858), (415, 485932), (820, 245929), (830, 242966), (1660, 121483), (2963, 68060), (3403, 59260), (5926, 34030), (6806, 29630), (11852, 17015), (13612, 14815)]