1640209920

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5209}}^1$

素因数の和:5276

約数の個数: 160

約数和(自身を含む): 5372468640

約数和(自身を除く): 3732258720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 256, 320, 328, 384, 410, 480, 492, 512, 615, 640, 656, 768, 820, 960, 984, 1230, 1280, 1312, 1536, 1640, 1920, 1968, 2460, 2560, 2624, 3280, 3840, 3936, 4920, 5209, 5248, 6560, 7680, 7872, 9840, 10418, 10496, 13120, 15627, 15744, 19680, 20836, 20992, 26045, 26240, 31254, 31488, 39360, 41672, 52090, 52480, 62508, 62976, 78135, 78720, 83344, 104180, 104960, 125016, 156270, 157440, 166688, 208360, 213569, 250032, 312540, 314880, 333376, 416720, 427138, 500064, 625080, 640707, 666752, 833440, 854276, 1000128, 1067845, 1250160, 1281414, 1333504, 1666880, 1708552, 2000256, 2135690, 2500320, 2562828, 2667008, 3203535, 3333760, 3417104, 4000512, 4271380, 5000640, 5125656, 6407070, 6667520, 6834208, 8001024, 8542760, 10001280, 10251312, 12814140, 13335040, 13668416, 17085520, 20002560, 20502624, 25628280, 27336832, 34171040, 40005120, 41005248, 51256560, 54673664, 68342080, 82010496, 102513120, 109347328, 136684160, 164020992, 205026240, 273368320, 328041984, 410052480, 546736640, 820104960, 1640209920]

約数ペア:

[(1, 1640209920), (2, 820104960), (3, 546736640), (4, 410052480), (5, 328041984), (6, 273368320), (8, 205026240), (10, 164020992), (12, 136684160), (15, 109347328), (16, 102513120), (20, 82010496), (24, 68342080), (30, 54673664), (32, 51256560), (40, 41005248), (41, 40005120), (48, 34171040), (60, 27336832), (64, 25628280), (80, 20502624), (82, 20002560), (96, 17085520), (120, 13668416), (123, 13335040), (128, 12814140), (160, 10251312), (164, 10001280), (192, 8542760), (205, 8001024), (240, 6834208), (246, 6667520), (256, 6407070), (320, 5125656), (328, 5000640), (384, 4271380), (410, 4000512), (480, 3417104), (492, 3333760), (512, 3203535), (615, 2667008), (640, 2562828), (656, 2500320), (768, 2135690), (820, 2000256), (960, 1708552), (984, 1666880), (1230, 1333504), (1280, 1281414), (1312, 1250160), (1536, 1067845), (1640, 1000128), (1920, 854276), (1968, 833440), (2460, 666752), (2560, 640707), (2624, 625080), (3280, 500064), (3840, 427138), (3936, 416720), (4920, 333376), (5209, 314880), (5248, 312540), (6560, 250032), (7680, 213569), (7872, 208360), (9840, 166688), (10418, 157440), (10496, 156270), (13120, 125016), (15627, 104960), (15744, 104180), (19680, 83344), (20836, 78720), (20992, 78135), (26045, 62976), (26240, 62508), (31254, 52480), (31488, 52090), (39360, 41672)]