1811775

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 72

約数和(自身を含む): 3816720

約数和(自身を除く): 2004945

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 29, 35, 49, 51, 75, 85, 87, 105, 119, 145, 147, 175, 203, 245, 255, 357, 425, 435, 493, 525, 595, 609, 725, 735, 833, 1015, 1225, 1275, 1421, 1479, 1785, 2175, 2465, 2499, 2975, 3045, 3451, 3675, 4165, 4263, 5075, 7105, 7395, 8925, 10353, 12325, 12495, 15225, 17255, 20825, 21315, 24157, 35525, 36975, 51765, 62475, 72471, 86275, 106575, 120785, 258825, 362355, 603925, 1811775]

約数ペア:

[(1, 1811775), (3, 603925), (5, 362355), (7, 258825), (15, 120785), (17, 106575), (21, 86275), (25, 72471), (29, 62475), (35, 51765), (49, 36975), (51, 35525), (75, 24157), (85, 21315), (87, 20825), (105, 17255), (119, 15225), (145, 12495), (147, 12325), (175, 10353), (203, 8925), (245, 7395), (255, 7105), (357, 5075), (425, 4263), (435, 4165), (493, 3675), (525, 3451), (595, 3045), (609, 2975), (725, 2499), (735, 2465), (833, 2175), (1015, 1785), (1225, 1479), (1275, 1421)]