18843080

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 25220920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 79, 89, 134, 158, 178, 268, 316, 335, 356, 395, 445, 536, 632, 670, 712, 790, 890, 1340, 1580, 1780, 2680, 3160, 3560, 5293, 5963, 7031, 10586, 11926, 14062, 21172, 23852, 26465, 28124, 29815, 35155, 42344, 47704, 52930, 56248, 59630, 70310, 105860, 119260, 140620, 211720, 238520, 281240, 471077, 942154, 1884308, 2355385, 3768616, 4710770, 9421540, 18843080]

約数ペア:

[(1, 18843080), (2, 9421540), (4, 4710770), (5, 3768616), (8, 2355385), (10, 1884308), (20, 942154), (40, 471077), (67, 281240), (79, 238520), (89, 211720), (134, 140620), (158, 119260), (178, 105860), (268, 70310), (316, 59630), (335, 56248), (356, 52930), (395, 47704), (445, 42344), (536, 35155), (632, 29815), (670, 28124), (712, 26465), (790, 23852), (890, 21172), (1340, 14062), (1580, 11926), (1780, 10586), (2680, 7031), (3160, 5963), (3560, 5293)]