18103640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 43804800

約数和(自身を除く): 25701160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 79, 85, 136, 158, 170, 316, 337, 340, 395, 632, 674, 680, 790, 1343, 1348, 1580, 1685, 2686, 2696, 3160, 3370, 5372, 5729, 6715, 6740, 10744, 11458, 13430, 13480, 22916, 26623, 26860, 28645, 45832, 53246, 53720, 57290, 106492, 114580, 133115, 212984, 229160, 266230, 452591, 532460, 905182, 1064920, 1810364, 2262955, 3620728, 4525910, 9051820, 18103640]

約数ペア:

[(1, 18103640), (2, 9051820), (4, 4525910), (5, 3620728), (8, 2262955), (10, 1810364), (17, 1064920), (20, 905182), (34, 532460), (40, 452591), (68, 266230), (79, 229160), (85, 212984), (136, 133115), (158, 114580), (170, 106492), (316, 57290), (337, 53720), (340, 53246), (395, 45832), (632, 28645), (674, 26860), (680, 26623), (790, 22916), (1343, 13480), (1348, 13430), (1580, 11458), (1685, 10744), (2686, 6740), (2696, 6715), (3160, 5729), (3370, 5372)]