21416080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 57496320

約数和(自身を除く): 36080240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 167, 229, 280, 334, 458, 560, 668, 835, 916, 1145, 1169, 1336, 1603, 1670, 1832, 2290, 2338, 2672, 3206, 3340, 3664, 4580, 4676, 5845, 6412, 6680, 8015, 9160, 9352, 11690, 12824, 13360, 16030, 18320, 18704, 23380, 25648, 32060, 38243, 46760, 64120, 76486, 93520, 128240, 152972, 191215, 267701, 305944, 382430, 535402, 611888, 764860, 1070804, 1338505, 1529720, 2141608, 2677010, 3059440, 4283216, 5354020, 10708040, 21416080]

約数ペア:

[(1, 21416080), (2, 10708040), (4, 5354020), (5, 4283216), (7, 3059440), (8, 2677010), (10, 2141608), (14, 1529720), (16, 1338505), (20, 1070804), (28, 764860), (35, 611888), (40, 535402), (56, 382430), (70, 305944), (80, 267701), (112, 191215), (140, 152972), (167, 128240), (229, 93520), (280, 76486), (334, 64120), (458, 46760), (560, 38243), (668, 32060), (835, 25648), (916, 23380), (1145, 18704), (1169, 18320), (1336, 16030), (1603, 13360), (1670, 12824), (1832, 11690), (2290, 9352), (2338, 9160), (2672, 8015), (3206, 6680), (3340, 6412), (3664, 5845), (4580, 4676)]