20178091430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{449}}^1\times {\mathrm{1601}}^1$

素因数の和:2465

約数の個数: 64

約数和(自身を含む): 41731459200

約数和(自身を除く): 21553367770

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 401, 449, 802, 898, 1601, 2005, 2245, 2807, 3143, 3202, 4010, 4490, 5614, 6286, 8005, 11207, 14035, 15715, 16010, 22414, 28070, 31430, 56035, 112070, 180049, 360098, 642001, 718849, 900245, 1260343, 1284002, 1437698, 1800490, 2520686, 3210005, 3594245, 4494007, 5031943, 6301715, 6420010, 7188490, 8988014, 10063886, 12603430, 22470035, 25159715, 44940070, 50319430, 288258449, 576516898, 1441292245, 2017809143, 2882584490, 4035618286, 10089045715, 20178091430]

約数ペア:

[(1, 20178091430), (2, 10089045715), (5, 4035618286), (7, 2882584490), (10, 2017809143), (14, 1441292245), (35, 576516898), (70, 288258449), (401, 50319430), (449, 44940070), (802, 25159715), (898, 22470035), (1601, 12603430), (2005, 10063886), (2245, 8988014), (2807, 7188490), (3143, 6420010), (3202, 6301715), (4010, 5031943), (4490, 4494007), (5614, 3594245), (6286, 3210005), (8005, 2520686), (11207, 1800490), (14035, 1437698), (15715, 1284002), (16010, 1260343), (22414, 900245), (28070, 718849), (31430, 642001), (56035, 360098), (112070, 180049)]