399902560

素因数分解:

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

素因数の和:896

約数の個数: 96

約数和(自身を含む): 1006229952

約数和(自身を除く): 606327392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 233, 272, 340, 466, 544, 631, 680, 932, 1165, 1262, 1360, 1864, 2330, 2524, 2720, 3155, 3728, 3961, 4660, 5048, 6310, 7456, 7922, 9320, 10096, 10727, 12620, 15844, 18640, 19805, 20192, 21454, 25240, 31688, 37280, 39610, 42908, 50480, 53635, 63376, 79220, 85816, 100960, 107270, 126752, 147023, 158440, 171632, 214540, 294046, 316880, 343264, 429080, 588092, 633760, 735115, 858160, 1176184, 1470230, 1716320, 2352368, 2499391, 2940460, 4704736, 4998782, 5880920, 9997564, 11761840, 12496955, 19995128, 23523680, 24993910, 39990256, 49987820, 79980512, 99975640, 199951280, 399902560]

約数ペア:

[(1, 399902560), (2, 199951280), (4, 99975640), (5, 79980512), (8, 49987820), (10, 39990256), (16, 24993910), (17, 23523680), (20, 19995128), (32, 12496955), (34, 11761840), (40, 9997564), (68, 5880920), (80, 4998782), (85, 4704736), (136, 2940460), (160, 2499391), (170, 2352368), (233, 1716320), (272, 1470230), (340, 1176184), (466, 858160), (544, 735115), (631, 633760), (680, 588092), (932, 429080), (1165, 343264), (1262, 316880), (1360, 294046), (1864, 214540), (2330, 171632), (2524, 158440), (2720, 147023), (3155, 126752), (3728, 107270), (3961, 100960), (4660, 85816), (5048, 79220), (6310, 63376), (7456, 53635), (7922, 50480), (9320, 42908), (10096, 39610), (10727, 37280), (12620, 31688), (15844, 25240), (18640, 21454), (19805, 20192)]