199951280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{631}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 495129024

約数和(自身を除く): 295177744

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 233, 272, 340, 466, 631, 680, 932, 1165, 1262, 1360, 1864, 2330, 2524, 3155, 3728, 3961, 4660, 5048, 6310, 7922, 9320, 10096, 10727, 12620, 15844, 18640, 19805, 21454, 25240, 31688, 39610, 42908, 50480, 53635, 63376, 79220, 85816, 107270, 147023, 158440, 171632, 214540, 294046, 316880, 429080, 588092, 735115, 858160, 1176184, 1470230, 2352368, 2499391, 2940460, 4998782, 5880920, 9997564, 11761840, 12496955, 19995128, 24993910, 39990256, 49987820, 99975640, 199951280]

約数ペア:

[(1, 199951280), (2, 99975640), (4, 49987820), (5, 39990256), (8, 24993910), (10, 19995128), (16, 12496955), (17, 11761840), (20, 9997564), (34, 5880920), (40, 4998782), (68, 2940460), (80, 2499391), (85, 2352368), (136, 1470230), (170, 1176184), (233, 858160), (272, 735115), (340, 588092), (466, 429080), (631, 316880), (680, 294046), (932, 214540), (1165, 171632), (1262, 158440), (1360, 147023), (1864, 107270), (2330, 85816), (2524, 79220), (3155, 63376), (3728, 53635), (3961, 50480), (4660, 42908), (5048, 39610), (6310, 31688), (7922, 25240), (9320, 21454), (10096, 19805), (10727, 18640), (12620, 15844)]