389988908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1999}}^1$

素因数の和:2190

約数の個数: 48

約数和(自身を含む): 766080000

約数和(自身を除く): 376091092

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 151, 302, 323, 604, 646, 1292, 1999, 2567, 2869, 3998, 5134, 5738, 7996, 10268, 11476, 33983, 37981, 48773, 67966, 75962, 97546, 135932, 151924, 195092, 301849, 603698, 645677, 1207396, 1291354, 2582708, 5131433, 5735131, 10262866, 11470262, 20525732, 22940524, 97497227, 194994454, 389988908]

約数ペア:

[(1, 389988908), (2, 194994454), (4, 97497227), (17, 22940524), (19, 20525732), (34, 11470262), (38, 10262866), (68, 5735131), (76, 5131433), (151, 2582708), (302, 1291354), (323, 1207396), (604, 645677), (646, 603698), (1292, 301849), (1999, 195092), (2567, 151924), (2869, 135932), (3998, 97546), (5134, 75962), (5738, 67966), (7996, 48773), (10268, 37981), (11476, 33983)]