18991413948

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1\times {\mathrm{3209}}^1$

素因数の和:3931

約数の個数: 96

約数和(自身を含む): 48621484800

約数和(自身を除く): 29630070852

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 59, 78, 118, 156, 177, 236, 354, 643, 708, 767, 1286, 1534, 1929, 2301, 2572, 3068, 3209, 3858, 4602, 6418, 7716, 8359, 9204, 9627, 12836, 16718, 19254, 25077, 33436, 37937, 38508, 41717, 50154, 75874, 83434, 100308, 113811, 125151, 151748, 166868, 189331, 227622, 250302, 378662, 455244, 493181, 500604, 567993, 757324, 986362, 1135986, 1479543, 1972724, 2063387, 2271972, 2461303, 2959086, 4126774, 4922606, 5918172, 6190161, 7383909, 8253548, 9845212, 12380322, 14767818, 24760644, 26824031, 29535636, 53648062, 80472093, 107296124, 121739833, 160944186, 243479666, 321888372, 365219499, 486959332, 730438998, 1460877996, 1582617829, 3165235658, 4747853487, 6330471316, 9495706974, 18991413948]

約数ペア:

[(1, 18991413948), (2, 9495706974), (3, 6330471316), (4, 4747853487), (6, 3165235658), (12, 1582617829), (13, 1460877996), (26, 730438998), (39, 486959332), (52, 365219499), (59, 321888372), (78, 243479666), (118, 160944186), (156, 121739833), (177, 107296124), (236, 80472093), (354, 53648062), (643, 29535636), (708, 26824031), (767, 24760644), (1286, 14767818), (1534, 12380322), (1929, 9845212), (2301, 8253548), (2572, 7383909), (3068, 6190161), (3209, 5918172), (3858, 4922606), (4602, 4126774), (6418, 2959086), (7716, 2461303), (8359, 2271972), (9204, 2063387), (9627, 1972724), (12836, 1479543), (16718, 1135986), (19254, 986362), (25077, 757324), (33436, 567993), (37937, 500604), (38508, 493181), (41717, 455244), (50154, 378662), (75874, 250302), (83434, 227622), (100308, 189331), (113811, 166868), (125151, 151748)]