30818840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 77474880

約数和(自身を除く): 46656040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 97, 104, 130, 169, 188, 194, 235, 260, 338, 376, 388, 470, 485, 520, 611, 676, 776, 845, 940, 970, 1222, 1261, 1352, 1690, 1880, 1940, 2444, 2522, 3055, 3380, 3880, 4559, 4888, 5044, 6110, 6305, 6760, 7943, 9118, 10088, 12220, 12610, 15886, 16393, 18236, 22795, 24440, 25220, 31772, 32786, 36472, 39715, 45590, 50440, 59267, 63544, 65572, 79430, 81965, 91180, 118534, 131144, 158860, 163930, 182360, 237068, 296335, 317720, 327860, 474136, 592670, 655720, 770471, 1185340, 1540942, 2370680, 3081884, 3852355, 6163768, 7704710, 15409420, 30818840]

約数ペア:

[(1, 30818840), (2, 15409420), (4, 7704710), (5, 6163768), (8, 3852355), (10, 3081884), (13, 2370680), (20, 1540942), (26, 1185340), (40, 770471), (47, 655720), (52, 592670), (65, 474136), (94, 327860), (97, 317720), (104, 296335), (130, 237068), (169, 182360), (188, 163930), (194, 158860), (235, 131144), (260, 118534), (338, 91180), (376, 81965), (388, 79430), (470, 65572), (485, 63544), (520, 59267), (611, 50440), (676, 45590), (776, 39715), (845, 36472), (940, 32786), (970, 31772), (1222, 25220), (1261, 24440), (1352, 22795), (1690, 18236), (1880, 16393), (1940, 15886), (2444, 12610), (2522, 12220), (3055, 10088), (3380, 9118), (3880, 7943), (4559, 6760), (4888, 6305), (5044, 6110)]