31115880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:680

約数の個数: 128

約数和(自身を含む): 106099200

約数和(自身を除く): 74983320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 470, 540, 564, 613, 705, 846, 940, 1080, 1128, 1226, 1269, 1410, 1692, 1839, 1880, 2115, 2452, 2538, 2820, 3065, 3384, 3678, 4230, 4904, 5076, 5517, 5640, 6130, 6345, 7356, 8460, 9195, 10152, 11034, 12260, 12690, 14712, 16551, 16920, 18390, 22068, 24520, 25380, 27585, 28811, 33102, 36780, 44136, 50760, 55170, 57622, 66204, 73560, 82755, 86433, 110340, 115244, 132408, 144055, 165510, 172866, 220680, 230488, 259299, 288110, 331020, 345732, 432165, 518598, 576220, 662040, 691464, 777897, 864330, 1037196, 1152440, 1296495, 1555794, 1728660, 2074392, 2592990, 3111588, 3457320, 3889485, 5185980, 6223176, 7778970, 10371960, 15557940, 31115880]

約数ペア:

[(1, 31115880), (2, 15557940), (3, 10371960), (4, 7778970), (5, 6223176), (6, 5185980), (8, 3889485), (9, 3457320), (10, 3111588), (12, 2592990), (15, 2074392), (18, 1728660), (20, 1555794), (24, 1296495), (27, 1152440), (30, 1037196), (36, 864330), (40, 777897), (45, 691464), (47, 662040), (54, 576220), (60, 518598), (72, 432165), (90, 345732), (94, 331020), (108, 288110), (120, 259299), (135, 230488), (141, 220680), (180, 172866), (188, 165510), (216, 144055), (235, 132408), (270, 115244), (282, 110340), (360, 86433), (376, 82755), (423, 73560), (470, 66204), (540, 57622), (564, 55170), (613, 50760), (705, 44136), (846, 36780), (940, 33102), (1080, 28811), (1128, 27585), (1226, 25380), (1269, 24520), (1410, 22068), (1692, 18390), (1839, 16920), (1880, 16551), (2115, 14712), (2452, 12690), (2538, 12260), (2820, 11034), (3065, 10152), (3384, 9195), (3678, 8460), (4230, 7356), (4904, 6345), (5076, 6130), (5517, 5640)]