18965440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 112

約数和(自身を含む): 50182272

約数和(自身を除く): 31216832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 97, 104, 130, 160, 188, 194, 208, 235, 260, 320, 376, 388, 416, 470, 485, 520, 611, 752, 776, 832, 940, 970, 1040, 1222, 1261, 1504, 1552, 1880, 1940, 2080, 2444, 2522, 3008, 3055, 3104, 3760, 3880, 4160, 4559, 4888, 5044, 6110, 6208, 6305, 7520, 7760, 9118, 9776, 10088, 12220, 12610, 15040, 15520, 18236, 19552, 20176, 22795, 24440, 25220, 31040, 36472, 39104, 40352, 45590, 48880, 50440, 59267, 72944, 80704, 91180, 97760, 100880, 118534, 145888, 182360, 195520, 201760, 237068, 291776, 296335, 364720, 403520, 474136, 592670, 729440, 948272, 1185340, 1458880, 1896544, 2370680, 3793088, 4741360, 9482720, 18965440]

約数ペア:

[(1, 18965440), (2, 9482720), (4, 4741360), (5, 3793088), (8, 2370680), (10, 1896544), (13, 1458880), (16, 1185340), (20, 948272), (26, 729440), (32, 592670), (40, 474136), (47, 403520), (52, 364720), (64, 296335), (65, 291776), (80, 237068), (94, 201760), (97, 195520), (104, 182360), (130, 145888), (160, 118534), (188, 100880), (194, 97760), (208, 91180), (235, 80704), (260, 72944), (320, 59267), (376, 50440), (388, 48880), (416, 45590), (470, 40352), (485, 39104), (520, 36472), (611, 31040), (752, 25220), (776, 24440), (832, 22795), (940, 20176), (970, 19552), (1040, 18236), (1222, 15520), (1261, 15040), (1504, 12610), (1552, 12220), (1880, 10088), (1940, 9776), (2080, 9118), (2444, 7760), (2522, 7520), (3008, 6305), (3055, 6208), (3104, 6110), (3760, 5044), (3880, 4888), (4160, 4559)]