20435960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 48686400

約数和(自身を除く): 28250440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 229, 230, 388, 458, 460, 485, 776, 916, 920, 970, 1145, 1832, 1940, 2231, 2290, 3880, 4462, 4580, 5267, 8924, 9160, 10534, 11155, 17848, 21068, 22213, 22310, 26335, 42136, 44426, 44620, 52670, 88852, 89240, 105340, 111065, 177704, 210680, 222130, 444260, 510899, 888520, 1021798, 2043596, 2554495, 4087192, 5108990, 10217980, 20435960]

約数ペア:

[(1, 20435960), (2, 10217980), (4, 5108990), (5, 4087192), (8, 2554495), (10, 2043596), (20, 1021798), (23, 888520), (40, 510899), (46, 444260), (92, 222130), (97, 210680), (115, 177704), (184, 111065), (194, 105340), (229, 89240), (230, 88852), (388, 52670), (458, 44620), (460, 44426), (485, 42136), (776, 26335), (916, 22310), (920, 22213), (970, 21068), (1145, 17848), (1832, 11155), (1940, 10534), (2231, 9160), (2290, 8924), (3880, 5267), (4462, 4580)]