31231440

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:802

約数の個数: 160

約数和(自身を含む): 113385600

約数和(自身を除く): 82154160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 108, 114, 120, 135, 144, 152, 171, 180, 190, 216, 228, 240, 270, 285, 304, 342, 360, 380, 432, 456, 513, 540, 570, 684, 720, 760, 761, 855, 912, 1026, 1080, 1140, 1368, 1520, 1522, 1710, 2052, 2160, 2280, 2283, 2565, 2736, 3044, 3420, 3805, 4104, 4560, 4566, 5130, 6088, 6840, 6849, 7610, 8208, 9132, 10260, 11415, 12176, 13680, 13698, 14459, 15220, 18264, 20520, 20547, 22830, 27396, 28918, 30440, 34245, 36528, 41040, 41094, 43377, 45660, 54792, 57836, 60880, 68490, 72295, 82188, 86754, 91320, 102735, 109584, 115672, 130131, 136980, 144590, 164376, 173508, 182640, 205470, 216885, 231344, 260262, 273960, 289180, 328752, 347016, 390393, 410940, 433770, 520524, 547920, 578360, 650655, 694032, 780786, 821880, 867540, 1041048, 1156720, 1301310, 1561572, 1643760, 1735080, 1951965, 2082096, 2602620, 3123144, 3470160, 3903930, 5205240, 6246288, 7807860, 10410480, 15615720, 31231440]

約数ペア:

[(1, 31231440), (2, 15615720), (3, 10410480), (4, 7807860), (5, 6246288), (6, 5205240), (8, 3903930), (9, 3470160), (10, 3123144), (12, 2602620), (15, 2082096), (16, 1951965), (18, 1735080), (19, 1643760), (20, 1561572), (24, 1301310), (27, 1156720), (30, 1041048), (36, 867540), (38, 821880), (40, 780786), (45, 694032), (48, 650655), (54, 578360), (57, 547920), (60, 520524), (72, 433770), (76, 410940), (80, 390393), (90, 347016), (95, 328752), (108, 289180), (114, 273960), (120, 260262), (135, 231344), (144, 216885), (152, 205470), (171, 182640), (180, 173508), (190, 164376), (216, 144590), (228, 136980), (240, 130131), (270, 115672), (285, 109584), (304, 102735), (342, 91320), (360, 86754), (380, 82188), (432, 72295), (456, 68490), (513, 60880), (540, 57836), (570, 54792), (684, 45660), (720, 43377), (760, 41094), (761, 41040), (855, 36528), (912, 34245), (1026, 30440), (1080, 28918), (1140, 27396), (1368, 22830), (1520, 20547), (1522, 20520), (1710, 18264), (2052, 15220), (2160, 14459), (2280, 13698), (2283, 13680), (2565, 12176), (2736, 11415), (3044, 10260), (3420, 9132), (3805, 8208), (4104, 7610), (4560, 6849), (4566, 6840), (5130, 6088)]