405725620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{22717}}^1$

素因数の和:22792

約数の個数: 48

約数和(自身を含む): 915989760

約数和(自身を除く): 510264140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 8930, 17860, 22717, 45434, 90868, 113585, 227170, 431623, 454340, 863246, 1067699, 1726492, 2135398, 2158115, 4270796, 4316230, 5338495, 8632460, 10676990, 20286281, 21353980, 40572562, 81145124, 101431405, 202862810, 405725620]

約数ペア:

[(1, 405725620), (2, 202862810), (4, 101431405), (5, 81145124), (10, 40572562), (19, 21353980), (20, 20286281), (38, 10676990), (47, 8632460), (76, 5338495), (94, 4316230), (95, 4270796), (188, 2158115), (190, 2135398), (235, 1726492), (380, 1067699), (470, 863246), (893, 454340), (940, 431623), (1786, 227170), (3572, 113585), (4465, 90868), (8930, 45434), (17860, 22717)]