31517640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1$

素因数の和:417

約数の個数: 256

約数和(自身を含む): 131328000

約数和(自身を除く): 99810360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 379, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 758, 770, 792, 840, 924, 945, 990, 1080, 1137, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1516, 1540, 1848, 1890, 1895, 1980, 2079, 2274, 2310, 2376, 2520, 2653, 2772, 2970, 3032, 3080, 3411, 3465, 3780, 3790, 3960, 4158, 4169, 4548, 4620, 5306, 5544, 5685, 5940, 6822, 6930, 7560, 7580, 7959, 8316, 8338, 9096, 9240, 10233, 10395, 10612, 11370, 11880, 12507, 13265, 13644, 13860, 15160, 15918, 16632, 16676, 17055, 20466, 20790, 20845, 21224, 22740, 23877, 25014, 26530, 27288, 27720, 29183, 31836, 33352, 34110, 37521, 39795, 40932, 41580, 41690, 45480, 47754, 50028, 51165, 53060, 58366, 62535, 63672, 68220, 71631, 75042, 79590, 81864, 83160, 83380, 87549, 95508, 100056, 102330, 106120, 112563, 116732, 119385, 125070, 136440, 143262, 145915, 150084, 159180, 166760, 175098, 187605, 191016, 204660, 225126, 233464, 238770, 250140, 262647, 286524, 291830, 300168, 318360, 350196, 358155, 375210, 409320, 437745, 450252, 477540, 500280, 525294, 562815, 573048, 583660, 700392, 716310, 750420, 787941, 875490, 900504, 955080, 1050588, 1125630, 1167320, 1313235, 1432620, 1500840, 1575882, 1750980, 2101176, 2251260, 2626470, 2865240, 3151764, 3501960, 3939705, 4502520, 5252940, 6303528, 7879410, 10505880, 15758820, 31517640]

約数ペア:

[(1, 31517640), (2, 15758820), (3, 10505880), (4, 7879410), (5, 6303528), (6, 5252940), (7, 4502520), (8, 3939705), (9, 3501960), (10, 3151764), (11, 2865240), (12, 2626470), (14, 2251260), (15, 2101176), (18, 1750980), (20, 1575882), (21, 1500840), (22, 1432620), (24, 1313235), (27, 1167320), (28, 1125630), (30, 1050588), (33, 955080), (35, 900504), (36, 875490), (40, 787941), (42, 750420), (44, 716310), (45, 700392), (54, 583660), (55, 573048), (56, 562815), (60, 525294), (63, 500280), (66, 477540), (70, 450252), (72, 437745), (77, 409320), (84, 375210), (88, 358155), (90, 350196), (99, 318360), (105, 300168), (108, 291830), (110, 286524), (120, 262647), (126, 250140), (132, 238770), (135, 233464), (140, 225126), (154, 204660), (165, 191016), (168, 187605), (180, 175098), (189, 166760), (198, 159180), (210, 150084), (216, 145915), (220, 143262), (231, 136440), (252, 125070), (264, 119385), (270, 116732), (280, 112563), (297, 106120), (308, 102330), (315, 100056), (330, 95508), (360, 87549), (378, 83380), (379, 83160), (385, 81864), (396, 79590), (420, 75042), (440, 71631), (462, 68220), (495, 63672), (504, 62535), (540, 58366), (594, 53060), (616, 51165), (630, 50028), (660, 47754), (693, 45480), (756, 41690), (758, 41580), (770, 40932), (792, 39795), (840, 37521), (924, 34110), (945, 33352), (990, 31836), (1080, 29183), (1137, 27720), (1155, 27288), (1188, 26530), (1260, 25014), (1320, 23877), (1386, 22740), (1485, 21224), (1512, 20845), (1516, 20790), (1540, 20466), (1848, 17055), (1890, 16676), (1895, 16632), (1980, 15918), (2079, 15160), (2274, 13860), (2310, 13644), (2376, 13265), (2520, 12507), (2653, 11880), (2772, 11370), (2970, 10612), (3032, 10395), (3080, 10233), (3411, 9240), (3465, 9096), (3780, 8338), (3790, 8316), (3960, 7959), (4158, 7580), (4169, 7560), (4548, 6930), (4620, 6822), (5306, 5940), (5544, 5685)]