15933820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 39644640

約数和(自身を除く): 23710820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 229, 245, 284, 355, 458, 490, 497, 710, 916, 980, 994, 1145, 1420, 1603, 1988, 2290, 2485, 3206, 3479, 4580, 4970, 6412, 6958, 8015, 9940, 11221, 13916, 16030, 16259, 17395, 22442, 32060, 32518, 34790, 44884, 56105, 65036, 69580, 81295, 112210, 113813, 162590, 224420, 227626, 325180, 455252, 569065, 796691, 1138130, 1593382, 2276260, 3186764, 3983455, 7966910, 15933820]

約数ペア:

[(1, 15933820), (2, 7966910), (4, 3983455), (5, 3186764), (7, 2276260), (10, 1593382), (14, 1138130), (20, 796691), (28, 569065), (35, 455252), (49, 325180), (70, 227626), (71, 224420), (98, 162590), (140, 113813), (142, 112210), (196, 81295), (229, 69580), (245, 65036), (284, 56105), (355, 44884), (458, 34790), (490, 32518), (497, 32060), (710, 22442), (916, 17395), (980, 16259), (994, 16030), (1145, 13916), (1420, 11221), (1603, 9940), (1988, 8015), (2290, 6958), (2485, 6412), (3206, 4970), (3479, 4580)]