16987280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^2\times {\mathrm{61}}^1$

素因数の和:192

約数の個数: 60

約数和(自身を含む): 40834812

約数和(自身を除く): 23847532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 61, 80, 118, 122, 236, 244, 295, 305, 472, 488, 590, 610, 944, 976, 1180, 1220, 2360, 2440, 3481, 3599, 4720, 4880, 6962, 7198, 13924, 14396, 17405, 17995, 27848, 28792, 34810, 35990, 55696, 57584, 69620, 71980, 139240, 143960, 212341, 278480, 287920, 424682, 849364, 1061705, 1698728, 2123410, 3397456, 4246820, 8493640, 16987280]

約数ペア:

[(1, 16987280), (2, 8493640), (4, 4246820), (5, 3397456), (8, 2123410), (10, 1698728), (16, 1061705), (20, 849364), (40, 424682), (59, 287920), (61, 278480), (80, 212341), (118, 143960), (122, 139240), (236, 71980), (244, 69620), (295, 57584), (305, 55696), (472, 35990), (488, 34810), (590, 28792), (610, 27848), (944, 17995), (976, 17405), (1180, 14396), (1220, 13924), (2360, 7198), (2440, 6962), (3481, 4880), (3599, 4720)]